Nondisjunction in meiosis II can result in the production of egg cells that have an abnormal number of chromosomes. If an egg cell that has undergone nondisjunction fertilizes with a normal haploid sperm.
The resulting offspring will have an abnormal number of chromosomes. If the egg cell has an extra copy of the chromosome containing gene A, the possible genotypes of the offspring would be AaAa, Aaa, and Aa, because the sperm cell will contribute one copy of the chromosome to the fertilized egg. If the egg cell is missing one copy of the chromosome containing gene A, the possible genotypes of the offspring would be aa and aA, because the sperm cell will contribute one copy of the chromosome to the fertilized egg. Therefore, based on the given options, the possible genotypes that could result from the fertilization of an egg that had undergone nondisjunction in meiosis II with a normal haploid sperm are AaAa, Aaa, Aa, aa, and aA.
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intracellular or extracellular triggers can initiate apoptosis signals. during apoptosis, a message prompts a cascade of proteins. part of programmed cell death involves the fragmentation of dna and the deconstruction of organelles and other cytoplasmic components. apoptosis shields adjacent cells from potential damage. which of the following is an example of apoptosis that aids in embryonic development?
Apoptosis occurs in soft tissue cells between the fingers and toes during development to separate the digits from each other. The formation of heart loops is also dependent on the apoptosis process.
intracellular or extracellular triggers can initiate apoptosis signals. during apoptosis, a message prompts a cascade of proteins. part of programmed cell death involves the fragmentation of dna and the deconstruction of organelles and other cytoplasmic components. apoptosis shields adjacent cells from potential damage.
In his article "The Apoptotic Oocyte," Gary Wessel of Brown University in Providence, Rhode Island, discusses the role of apoptosis in human females. Apoptosis occurs in human female oocytes during development and after birth. Scientists estimate that seven to eight million oocytes are formed in the fetus, which are reduced to about 100,000 oocytes at birth and then to a few hundred when menopause begins.
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When glucose is converted to pyruvate, the equivalent of __ ATPs are produced. When pyruvate is converted to acetyl coa and enters TCA and oxidative phosphorylation, the total equivalent of ____ ATPs are derived Group of answer choices
A) 4, 44
B)2, 32
C)3, 43
D) 5, 25
When glucose is converted to pyruvate, the equivalent of 2 ATPs are produced. When pyruvate is converted to acetyl coa and enters TCA and oxidative phosphorylation, the total equivalent of 32 ATPs are derived.
Adenosine triphosphate is produced as a result of the cellular process known as oxidative phosphorylation, which uses oxygen reduction to create high-energy phosphate bonds (ATP). The electron transport chain is a chain of oxidation-reduction reactions that takes place within the mitochondria and involves the transportation of electrons from NADH and FADH2 to oxygen through a number of protein, metal, and lipid complexes (ETC). The NADH and FADH2 produced by various catabolic cellular processes are used by the electron transport chain. In addition, the last oxidising agent in oxidative phosphorylation is elemental oxygen (and electron acceptor). When compared to anaerobic creatures, the electron transport chain and mitochondrial activity provide insight into how aerobic eukaryotic life has evolved and progressed.
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Option B is Correct. Two ATPs are created when glucose is changed into pyruvate. The equivalent of 32 ATPs are produced when pyruvate is changed into acetyl coa, enters TCA, and undergoes oxidative phosphorylation.
The cellular process known as oxidative phosphorylation employs oxygen reduction to build high-energy phosphate bonds, and as a result, adenosine triphosphate is produced (ATP).
The electron transport chain is a series of oxidation-reduction events that happen in the mitochondria and include moving electrons from NADH and FADH2 to oxygen by passing through a number of protein, metal, and lipid complexes (ETC).
The electron transport chain uses the NADH and FADH2 that are generated by numerous catabolic cellular processes. Additionally, elemental is the final oxidizing agent in the process of oxidative phosphorylation.
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for which of these datasets is it appropriate to make a bar graph? select all that apply. honey production variation with temperature in a hive of bees number of eggs laid by four species of butterflies heart rate (beats per minute) when resting, walking, or running five miles per hour number of children in each grade at an elementary school
It is appropriate to make a bar graph for the following datasets: honey production variation with temperature in a hive of bees, number of fertilized eggs by four butterfly species, number of elementary school pupils in each grade
There are many types of graphs that can be used to display data, and the appropriate type of graph to use depends on the type of data and the message you want to convey. Some common types of graphs include:
Bar graphs: used to compare categorical data
Line graphs: used to show changes in continuous data over time
Pie charts: used to show proportions of different categories
A bar graph is a useful way to display categorical data and compare different categories, or groups. In the datasets you mentioned, it is useful to compare the honey production at different temperatures, the number of eggs laid by different butterfly species, and the number of children in different grades.
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definition of Conductivity
Answer:
Conductivity is the quality/power when it comes to conducting or transmitting
Explanation:
Given the original and mutated DNA strands below, identify the mutation.
ORIGINAL= A-T-T-C-G-G-A-A-C-T-G-A
MUTATED = A-T-T-C-G-G-G-A-A-C-T-G-A
Given the original and mutated DNA strands below, frameshift mutation is shown . Frameshift mutations are gene mutations that alter the base sequence of an entire genetic frame from the point of the mutation.
One or more nucleotides can be added or removed as part of this process. A DNA sequence that has been mutated contains one insertional and one substitution mutation that causes the reading frame of the base sequence to shift, or a frameshift mutation.
What is mutation?A change in the nucleic acid sequence of an organism's genome, virus, or extrachromosomal DNA is known as a mutation in biology. DNA or RNA are contained in viral genomes.
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In the movie Contagion, Why is the woman from the Minnesota Department of Health (MDH) not willing to go to the public about the disease?
Answer:
The woman from the Minnesota Department of Health (MDH) in the movie Contagion is not willing to go to the public about the disease because she is following the protocols and guidelines set by the Centers for Disease Control and Prevention (CDC) and there is no clear understanding of the nature of the disease or its origin, and also it could lead to misinformation and unnecessary panic.
Explanation:
In the movie Contagion, the woman from the Minnesota Department of Health (MDH) is not willing to go to the public about the disease because she is following the protocols and guidelines set by the Centers for Disease Control and Prevention (CDC). The CDC has not yet confirmed the outbreak, and going public before an official confirmation could cause unnecessary panic and chaos. Additionally, the woman from MDH is not willing to go to the public about the disease because there is no clear understanding of the nature of the disease or its origin, so there is no way to give accurate information to the public, and also it could lead to misinformation.
Going public too early could also hinder the ability of the MDH and other health organizations to effectively contain and control the outbreak. The woman from the MDH is following a cautious and responsible approach to the outbreak, which is in line with the protocols and guidelines set by the CDC. She is making sure that the information that is disseminated to the public is accurate and that the public is not panicked, and also she wants to avoid misinformation to spread.
which of the following items should be autoclaved after working in the lab? multiple choice wash bin glass bacterial culture tubes dissection tray used for preserved specimen discarded dissection tissue
After working in the lab, glass bacterial culture tubes should be autoclaved.
Culture tubes, culture plates, swabs, toothpicks, wipes, disposable transfer needles, and gloves should all be placed in a biohazard autoclave bag and autoclaved for 30 to 40 minutes at 121 °C at 20 pounds of pressure.
Pre-cleaned borosilicate glass test tubes with no rims. Tubes can be used for hot or cold applications, are reusable, and can be autoclaved.
Steam, high pressure, and time are used to complete the process. Steam is remarkably effective at transferring thermal energy (when compared to dry air) and can sterilise a load at 121 °C in just 15 minutes. The vast majority of laboratory glass bottles are autoclavable.
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Assume that genes C and D are located on the same chromosome. On one chromosome, alleles C and D are found, while the homologue contains alleles c and d. Which of the following would be evidence of a recombination event?Multiple ChoiceAlleles C and D together on one chromosome.Alleles c and d together on one chromosome.Alleles C and d together on one chromosome.Alleles c and D together on one chromosome.Both alleles C and d together on one chromosome and alleles c and D together on one chromosome.
Both alleles C and d together on one chromosome and alleles c and D together on one chromosome.
As per the options, this one will be the best evidence of a recombination event.
Genes are referred to as being unlinked when they are located on distinct chromosomes or distantly from one another on the same chromosome.Genes are referred to as linked when they are located close to one another on the same chromosome. This means that the alleles, or gene variants, that are already present on one chromosome will most likely be inherited together.By calculating the recombination frequency using information from genetic crosses, we may determine whether and how closely two genes are connected.Making linkage maps, which display the arrangement and relative locations of the genes on the chromosome, requires finding the recombination frequencies for numerous gene pairs.Learn more about chromosome here :
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Finding shelter, avoiding predators, andobtaining food are most closely related tothe ability of an animal to
Finding shelter, avoiding predators, and obtaining food are most closely related to the ability of an animal to Use structures adapted for movement.
An animal's ability to adapt to its environment is what allows it to live. All creatures must be able to find food and water, defend themselves from attack, endure the environment, and bear offspring in order to prevent the extinction of their species. Therefore, any animal that successfully survives on land or in water has developed physical or behavioural adaptations to support those aims. A bodily part, a body covering, a body function, or a behaviour that improves an animal's chances of surviving in a specific environment are all examples of adaptations.
Animals acquire these adaptations over time to fit their surroundings. Animals with features that enable them survive are more likely to live and pass those traits on to their offspring according to the process of natural selection. These changes take place gradually over a lengthy period of time as animals adjust to their surroundings. Adaptations take many generations to develop. Although ecosystems supply the food, water, and shelter that animals require, there are other factors involved in survival. Animals can survive, reproduce, and obtain food in that particular area thanks to their unique adaptations. Without these adaptations, the species would not have been able to survive in that setting.
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FILL IN THE BLANK Glands that secrete their products into surrounding tissue fluids are classified as ______ glands, whereas glands that secrete onto a membrane surface are classified as _____ glands.
Endocrine glands are those that secrete into the fluids surrounding the tissue they are located in, whereas exocrine glands secrete onto the surface of membranes.
One cell or maybe a group of highly specialized cells that produce and secrete chemicals can make up a gland. Depending on how they produce, glands are either classed as endocrine or exocrine.
Hormones produced by Endocrine glands are released right into circulation. In order to control particular bodily functions, hormones work as chemical messengers that circulate throughout the body to their intended locations.
Exocrine glands secrete their substances onto the skin's free surface or the variety of properties of the body's open cavities, like the digestive, respiratory, or reproductive systems. They Don't Really discharge their byproducts into the blood.
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Glands that secrete their products into surrounding tissue fluids are classified as endocrine glands, whereas glands that secrete onto a membrane surface are classified as exocrine glands.
Some endocrine glands directly respond to alterations in blood levels of specific essential ions (like K+) and nutrients by secreting hormones (such as glucose). They are known as humoral stimuli (from the Latin term humor, which refers to bodily fluids).
The postganglionic neurons of the sympathetic division of the autonomic nervous system are found in the medulla of the adrenal glands. Along with performing other tasks, its cortex also aids in controlling the body's mineral levels.
As a result, glands that secrete into the tissue fluids around them are referred to as exocrine glands, whereas those that secrete onto a membrane surface are referred to as endocrine glands.
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One of the genes that controls feather color is located on the Z chromosome in pigeons. The dominant allele results in blue feathers, while a recessive allele produces brown feathers. If a blue female pigeon mates with a brown male, what is the probability that their first chick is female and has brown feathers?
A. 0%
B. 25%
C. 50%
D. 75%
E. 100%
The probability that their first chick is female and has brown feathers is 25%.Since ZZ genotype results in blue feathers, the only way for the chick to have brown feathers is to inherit the z allele from its father, which is only possible if the offspring is Zz.
This is because the sex of the chick is determined by the sex chromosomes, with the female having two Z chromosomes and the male having one Z and one W chromosome. The color of the feathers is determined by the allele on the Z chromosome, with the dominant allele resulting in blue feathers and the recessive allele producing brown feathers. The blue female pigeon has a genotype of ZZ and the brown male has a genotype of Zz. When they mate, their offspring will have a 50% chance of inheriting a Z chromosome from the father and a 50% chance of inheriting one from the mother. So, half of the offspring will be ZZ and half will be Zz. So, the probability of the first chick being female and having brown feathers is (1/2)*(1/2)=25%.
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Which biotechnology job is responsible for creating and maintaining a healthy workplace?
Biotech engineering is a broad component of the life sciences industry. Biotech engineers can find work in medical equipment manufacture, pharmaceutical and medication manufacturing, research and development, teaching, and a variety of other fields that need scientific knowledge.
Is biotechnology or biomedical engineering superior?Biotechnology has a larger range of applications, ranging from genetics to waste management. The substance of your course will differ dramatically, with biotechnology emphasising molecular biology and biomedical engineering emphasising physiology, neurology, and medicine.
Biomedical engineering is founded on biological and medical engineering concepts, as well as a distinct multidisciplinary approach. Biotechnology, on the other hand, is based on biological science with a concentration on chemistry.
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If the input water is labeled with a radioactive isotope of 18O , then the oxygen gas released as the reaction proceeds is also labeled with 18. Which of the following is most likely the explanation?answer choicesDuring the light reaction of photosynthesis , the water split, removing electrons and protons and oxygen is released in the atmosphereDuring the light reaction of photosynthesis the water is split, the hydrogen atom combines with CO2 and O2 gas is releasedDuring the Calvin cycle , water is split , regenerating NADPH from NADP+ , and oxygen is releasedDuring the Calvin cycle, water is split, the hydrogen atoms are added to immidiates of sugar synthesis, and oxygen gas is released.
A) During the light reaction of photosynthesis , the water split, removing electrons and protons and oxygen is released in the atmosphere is the correct explanation for photosynthesis.
What causes the water splitting during photosynthesis?The cellular proteins photosystem II (PSII), which is located in the thylakoid membranes of cyanobacteria and green plant chloroplasts alongside other proteins of the photosynthetic light interactions, photochemically oxidized to form water.
What does the photosynthetic Calvin cycle entail?The C3 cycle would be another name for the Calvin cycle. The carbon from the carbon cycle gets resolved into sugars during a cycle of chemical reactions. It actually took place in the plant cell's chloroplast. Then, these three-carbon molecules can be metabolized by plants and animals into amino acids, nucleotides, and more complex carbohydrates like starches.
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The chemical reaction for photosynthesis is
6 CO2 + 12 H2O + light energy → C6H12O6 + 6 O2 + 6 H2O.
If the input water is labeled with a radioactive isotope of 18O , then the oxygen gas released as the reaction proceeds is also labeled with 18. Which of the following is most likely the explanation?
A) During the light reaction of photosynthesis , the water split, removing electrons and protons and oxygen is released in the atmosphere.
B) During the light reaction of photosynthesis the water is split, the hydrogen atom combines with CO2 and O2 gas is released.
C) During the Calvin cycle , water is split , regenerating NADPH from NADP+ , and oxygen is released.
D) During the Calvin cycle, water is split, the hydrogen atoms are added to immidiates of sugar synthesis, and oxygen gas is released.
regarding the evolution of metabolism and the energetically and environmentally unstable early earth, why is it conceivable that the first microbes were lithotrophs and possibly lithophototrophs.
It is conceivable that the first microbes were lithotrophs and possibly lithotrophs because lithotrophs belong to the domains Bacteria and Archaea.
Geological significance are lithotrophs participate in many geological processes, such as the formation of soil and the biogeochemical cycling of carbon, nitrogen, and other elements.
Lithotrophs is basically related with the modern-day issue of acid mine drainage.
An organism that obtains its energy from inorganic compounds (such as ammonia) via electron transfer is call lithotrophs.
Lithotrophs are found in soil and aquatic environments where they can find their energy source is present. lithotrophs are autotrophs which means they can grow in the absence of any organic material.
Lithotrophic species are found among the Bacteria and the Archaea.
Obligate lithotrophs include sulfide-, sulfur-, metal-, ammonium-, and nitrite-oxidizing bacteria. Facultative lithotrophs include aerobic hydrogen- and CO-oxidizing bacteria.
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in people with sickle-cell disease, red blood cells break down, clump, and clog blood vessels. blood vessels and broken cells accumulate in the spleen. among other symptoms, this leads to physical weakness, heart failure, pain, and brain damage. such a suite of symptoms can be explained by . view available hint(s)for part a in people with sickle-cell disease, red blood cells break down, clump, and clog blood vessels. blood vessels and broken cells accumulate in the spleen. among other symptoms, this leads to physical weakness, heart failure, pain, and brain damage. such a suite of symptoms can be explained by . a bacterial infection interacting with the sickle-cell allele the pleiotropic effects of the sickle-cell allele side effects of the drugs used to treat sickle-cell disease the polygenic nature of sickle-cell disease
In people with sickle-cell disease, red blood cells break down, clump, and clog blood vessels. These symptoms clogged blood vessels and broken cells accumulate in the spleen.
This leads to a suite of symptoms such as physical weakness, heart failure, pain, and brain damage. Such a suite of symptoms can be explained by the pleiotropic effects of the sickle-cell allele. Sickle cell disease is a genetic disorder caused by a change in the hemoglobin gene, it causes the red blood cells to become Sickle cell disease shaped and rigid, this shape causes them to clump and block the blood cells. The pleiotropic effects of the Sickle cell disease refer to the fact that a single genetic change can have multiple effects on an organism's phenotype, in this case, the genetic change causes problems in the shape of the red blood cells, which leads to multiple symptoms.
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The complete Question is :
In people with sickle cell disease, red blood cells break down, clump, and clog the blood vessels. The blood vessels and the broken cells accumulate in the spleen. Among other things this leads to physical weakness, heart failure, joint pain, and brain damage. Such a suite of symptoms can be explained by ____.
which of the following food sources provides the highest amount of protein per 100-gram serving issa
The highest amount of protein per 100-gram serving is found in lean beef.
Protein is an essential macronutrient that is important for building and repairing tissues, as well as maintaining healthy bones, muscles, and organs. Different types of food provide varying amounts of protein per serving, and some sources are more concentrated than others.
Lean beef is an excellent source of protein, providing about 26 grams of protein per 100-gram serving. This is higher than other protein sources such as chicken (about 23 grams per 100-gram serving) and fish (about 20 grams per 100-gram serving). Other animal-based sources like eggs, cheese, and milk also provide a good amount of protein per serving, but they are lower compared to lean beef.
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Two species that occasionally mate and produce zygotes, but which have incompatible genes that prevent the resulting embryo from developing, are separated by A). mechanical isolation. B). gametic isolation. C). reduced hybrid fertility. D). reduced hybrid viability. E). hybrid breakdown.
The correct answer is (D), i.e., reduced hybrid viability. Two species with inharmonious genes sometimes copulate and are successfully prezygotic, but the embryos are always abandoned. This is an illustration of behavioral insulation.
Prezygotic walls help members of different species, from lovemaking to single-celled embryos, to produce a zygote. Some illustration scripts are below. Two species might prefer different territories and therefore be doubtful to encounter one another. This is called niche insulation.
Reproductive insulation is a collection of mechanisms, actions, and physiological processes that help the members of two different species cross or copulate to produce seed or which ensure that any seed that may be produced isn't rich.
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Two species that occasionally mate and produce zygotes as well as have incompatible genes which prevent the embryo from developing are separated due to: (E) hybrid breakdown.
Genes are the basic factors through which traits are inherited from the parents to the offspring. These genes are present on the chromosomes at specific locations. The gene encode information for the protein synthesis that are the actual functional units.
Hybrid breakdown is a reproductive failure in genetic crosses that can be seen after the F2 generation. This results in the production of an offspring which is unable to reproduce, i.e. is sterile.
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Which of the following are important reasons to develop alternatives to fossil fuels?
(Choose all that apply.)
A. Fossil fuels affect the world population.
B. Fossil fuels are nonrenewable and will be used up out eventually
C. Fossil fuels release greenhouse gases increasing global warming
D. Fossil fuels contribute to pollution
The fossils are nonrenewable sources of energy and will be exhausted. They are also responsible for global warming on earth. Burning of fossils releases harmful gases in the atmosphere causing environmental pollution. So options B, C, and D all three apply.
What are fossils?The physical remains of extinct animals or plants buried deep down beneath the surface of the earth are known as fossils. The preserved skeletal remains of animals are the most frequent and obvious fossils. Leaf impressions, tracks and trails, burrows, droppings, and root casts are examples of additional fossils that are also proof of previous organisms.
In order to "read the rock record," or to understand the earth's history, fossils of all kinds are helpful. They can aid in identifying the paleoenvironment and geologic age of the area where they were deposited. Finally, their research may aid in our understanding of the evolution of life throughout geologic time if the fossil record is sufficiently complete.
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I have a bio poster presentation and I chose plant growth topic. Which plant should i do poster? u can give any suggestions and facts
Answer: You can use beans/bean sprouts or Mushrooms
Explanation: They grow quickly and in large quantities
q1. you aim to chemically synthesize four peptides with the following one-letter amino acid sequences: tiger, panther, cheetah, and cat. a) which one of these peptides will have the lowest pi? give a reason for your answer. you are not expected to calculate the pis of the peptides to answer this question. a qualitative knowledge of the ionization properties of amino acids discussed in class is sufficient to answer this question.
The peptide which is going to have the lowest pI is CHEETAH which is because of the presence of two acidic amino acids in it.
The point at which the net charge of a particular amino acid is zero or neutral can be defined as the pI or the isoelectric point of that particular amino acid.
Among the peptides that are given to us, the peptide CHEETAH possesses the lowest isoelectric point. CHEETAH consists of two acidic amino acids one of which is weakly basic amino acid known as Histidine (H) and the other one is Glutamate (E).
The peptide PANTHER will have a high pI as it consists of one acidic amino acid Glutamate (E) and two basic amino acids like Arginine (R) and Histidine (H). TIGER consists of one one basic amino acid Arginine (R) and acidic amino acid Glutamate (E). The peptide CAT will have a neutral pI as it has neither basic nor acidic amino acids in it.
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The phenomenon when positive and negative space change places, as seen in A Shape of Space is called:
The phenomenon when positive and negative space change places, as seen in A Shape of Space is called figure-ground reversal.
An essential component of object recognition through vision is figure-ground organization, a sort of perceptual grouping. A figure from the backdrop can be recognized, in Gestalt psychology. For instance, white sheet is referred to as the "background," and black words on a printed page are referred to as the "figure."
Gestalt psychology was the field from which the idea of figure-ground perception was born. The whole is more (or different), in the Gestalt perspective, than the sum of its parts. The word "form" or "shape" in German is where the word "gestalt" originates.
A number of German psychologists, including Max Wertheimer and Wolfgang Kohler, started looking into several perception-related concepts in the 1920s. These rules control how humans interpret an often-chaotic environment. The Gestalt laws of perceptual organization are a result of their research.
According to the Gestalt theory of perception, individuals make sense of their environment by bringing together various, different pieces to form a coherent whole.
When you look at forms that have been drawn on paper, for instance, your mind is likely to group the shapes according to resemblance or closeness. Things that resemble one another are frequently grouped together. Nearby objects frequently end up grouped together as well.
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Why is the R-group significant in the structure of proteins?
The R-group is the same in all amino acids and its chemical and physical properties give each amino acid unique
characteristics and functions.
The R-group is different in some amino acids and its chemical and physical properties give some amino acid unique
characteristics and functions.
The R-group is different in different amino acids and its chemical and physical properties give each amino acid unique
characteristics and functions.
The R-group is the same in all amino acids and its chemical and physical properties give all amino acids the same
characteristics and functions.
The R-group compose the amino acids as a side chain. C) The R-group is different in different amino acids and its chemical and physical properties give each amino acid unique characteristics and functions.
What is the R-group?The R-group is part of amino acids. The R-group composition is what makes them different from each other and provide each amino acid its own characteristic properties.
They are side chains that might be either hydrophobic or hydrophilic and, according to this property, they arrange in the protein facing the interior or exterior of the molecule, providing stability.
In a three-dimensional structure, the hydrophobic R-groups stick in the center of the polypeptide, facing the protein interior, and avoiding interaction with water. The hydrophilic R-groups, on the contrary, remain on the surface in contact with water.
Chemically speaking, some amino acids share the same type of R-groups, and some other not. So, in a folded molecule, amino acids with similar chemical side groups can function in the same way.
These are,
Non-polar R-groupCarboxyl R-groupAmine R-groupAromatic R-groupHydroxy R-groupOther R-groupsAccording to this framework, the correct option is C) The R-group is different in different amino acids and its chemical and physical properties give each amino acid unique characteristics and functions.
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Identify some enzymes that are present in lysosomes? How do these enzymes help in substances engulfing?
Some enzymes that are present in lysosomes include the following below and they help in substance engulfing by breaking down all types of biological polymers.
ProteasesNucleasesLipasesPhospholipases etcThis is referred to as a membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers such as proteins, carbohydrates etc in the cells of living organisms.
When the substances are broken down into simpler substances, it makes it easier for the lysosome to engulf them so as to prevent different forms of unwanted occurrences which is therefore the reason why it was chosen as the correct choice in this scenario.
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What affects watersheds. What if an oil spill happens in a certain river, like the Colorado river, which watershed will be affected? What is a divide?
Watersheds are affected by lake levels, groundwater inflow and outflow, and stream flow rates.
If an oil spill happens in a certain river, like the Colorado River, the watershed that will be affected is the delta of the river.
A divide is an elevated line dividing places that get water from various river systems.
What is a watershed?A watershed is a region of land that directs precipitation and snowmelt into creeks, streams, and rivers, finally flowing into reservoirs, bays, and the ocean as outflow sites.
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list three unique properties of water that make it an ideal medium cellular functioning, and explain how each property is useful to a plant.
Polarity, adhesion and cohesion are three unique properties of water that make it an ideal medium cellular functioning.
Water is present inside cells, which is the basis for cell life. Water is utilized to carry nutrients into and inside of cells (intracellular).
Polarity: Liquid water can dissolve a wide variety of ionic and polar covalent compounds thanks to the polarity of its molecules, which makes it a "universal solvent." Numerous chemicals required by organisms can be dissolved by water.
Cohesion: One water molecule's positive hydrogen will link with the negative oxygen of the next-door molecule, whose own hydrogens are drawn to the next oxygen, and so on. Importantly, this interaction causes water molecules to adhere to one another, a phenomenon known as cohesion. Water molecules stick together, allowing plants to absorb water at their roots. Water's high boiling point, which aids in animal body temperature regulation, is also a result of cohesion.
Adhesion: Adhesion is essential for the development of multicellular animals because it enables cellular communication as well as the preservation of tissue and organ structure. Numerous physiological functions, including cell migration, homeostasis, signaling, and tissue development, depend on cell adhesion. As a result, its dysregulation is linked to a variety of disorders and is thus medically relevant. The association between cell adhesion and cancer deserves special attention.
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The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?
A. Some energy is transferred to the organisms, and the remaining energy is released into the ecosystem as thermal energy.
B. Bacteria eat the dead bodies of organisms to release the organisms’ stored energy into the atmosphere.
C. Some energy is transferred to the smaller organisms, and the rest is stored in the bodies of larger animals.
D. Some energy is transferred to the organisms, and the rest is released by plants in the form of carbon dioxide.
E. Bacteria eat the dead bodies of organisms, obtain all the energy, and store it in their bodies.
Answer: B or E
Explanation: The cycle goes, producers (a plant) take energy from light, primary consumer (an insect) eats it and takes in that energy, secondary consumer (a herbivore) eats it and the tertiary consumer (a carnivore) eats that and the apex predator (also carnivore) eats it. Any of these can die at any point due to disease.
The real answer is that when an organism dies, decomposers such as fungi or bacteria can break it down allowing the nutrients to go back into the soil and the plants take it up and the cycle continues...
The answers aren't very good here but I reckon the closest one is E
What conclusion was Bob able to draw about minerals after reading this chart provided by
his physician?
A. Minerals found in healthy foods help the body to function properly.
B. Minerals are more important to the body than vitamins.
C. A vegetarian diet may be deficient in minerals.
D. Multivitamins are necessary in order to provide the body with minerals.
E. Adults need minerals in their diet more than do children.
Conclusion that Bob was able to draw about minerals after reading the chart provided by his physician : A.) Minerals found in healthy foods help the body to function properly.
How are minerals important for body?Minerals are necessary for building strong bones and teeth, controlling body fluids inside and outside cells and turning the food you eat into energy. Mineral deficiencies can lead to variety of health problems such as weak bones, fatigue, or decreased immune system.
Minerals help maintain acid-base balance to keep body pH neutral and help regulate body processes, such as in enzyme systems. Minerals also function in nerve impulse transmission and muscle contraction.
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PLS HELP ME DO THIS
Complete the Punnett square for each cross and then select the expected results from the drop-down list for each trait.
Punnett squares can be used to estimate the genotypic and phenotypic probabilities among the offspring. Cross 1: 100%Tt, 100% tall plants. Cross 2: 100% Pp, 100% purple flowers. Cross 3: 50% Yy - 50% yy. 50% yellow seeds - 50% green seeds. Cross 4: 25% PP, 50% Pp, 25% pp. 75% purple flowers, 25% white flowers.
What is a Punnett square?The Punnett square is a cross representation that shows the different types of gamete combinations according to the alleles involved.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
To answer this question, we will assume complete dominance, in which the dominant allele hides the expression of the recessive one.
Cross 1: Tall plant with short plant
Parentals) TT x tt
gametes) T T t t
Punnett square) T T
t Tt Tt
t Tt Tt
F1) Genotypes
100% of the progeny is expected to be heterozygous Tt
Phenotype
100% of the progeny is expected to be tall
Cross 2: Purple flowers with white flowers
Parentals) PP x pp
Gametes) P P p p
Punnett square) P P
p Pp Pp
p Pp Pp
F1) Genotype
100% of the progeny is expected to be heterozygous Pp
Phenotype
100% of the progeny is expected to have purple flowers
Cross 3: Yellow seeds with green seeds
Parentals) Yy x yy
Gametes) Y y y y
Punnett square) Y y
y Yy yy
y Yy yy
F1) Genotype
50% of the progeny is expected to be heterozygous Pp
50% of the progeny is expected to be homozygous recessive, pp
Phenotype
50% of the progeny is expected to have yellow seeds
50% of the progeny is expected to have green seeds
Cross 4: Two purple flowers
Parentals) Pp x Pp
Gametes) P p P p
Punnett square) P p
P PP Pp
p Pp pp
F1) Genotype
25% of the progeny is expected to be homozygous dominant PP
50% of the progeny is expected to be heterozygous Pp
25% of the progeny is expected to be homozygous recessive pp
Phenotype
75% of the progeny is expected to have purple flowers
25% of the progeny is expected to have white flowers
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If blood group of mother is 'AB' and father is 'O', the child may beO A, AB or OO AB or O O B or OO A or B
If the mother's blood group is 'AB' and the father is 'O', the child may be A or B.
The mother's blood group contains the Ia (A) and Ib (B) genes that give the AB blood group. The father’s blood group has two recessive i genes, giving him the O blood group.
According to the above table, the child may have A or B groups.
The blood group A is denoted by Iai or IaIa genes, while IbIb or Ibi indicate the B blood group.
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If blood group of mother is 'AB' and father is 'O', the child may be (d) A or B will be the correct option.
The classification of blood based on the presence or absence of antibodies and hereditary antigenic compounds on the surface of red blood cells is known as a blood type (also known as a blood group) (RBCs). Depending on the blood group system, these antigens could be proteins, carbohydrates, glycoproteins, or glycolipids. Some of these antigens can be found on the surface of numerous other cell types found in different organs. A blood group system is made up of a number of these red blood cell surface antigens that can all come from the same allele (or different gene).
The father carries the genotype I OI O or O if his blood type is O. The mother's genotype would be I AI B because she has blood type AB. Children with these two conceivable pairings would have genotypes I AI O or I BI O, respectively, giving them blood groups A or B .
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Which two substances does a thylakoid need in order to produce substances
that store chemical energy?
A. NADPH
B. ADP
C. NADP+
D. ATP
SUBMIT
ATP and NADPH are the two substances that are used by the thylakoids to produce substance that store chemical energy.
define thylakoids ?
A flattened sac or vesicle lined with a pigmented membrane that serves as the site of photosynthesis, occurring in plants and algae as interconnected stacks constituting a granum of the chloroplast, and occurring in other photosynthesizing organisms either singly or as part of the cell membrane or other structure.
A thylakoid is a sheet-like membrane-bound structure in chloroplasts and cyanobacteria that is the location of light-dependent photosynthesis processes. It is the location of the chlorophyll, which absorbs light and uses it in metabolic activities. Thylakoid is derived from the Greek word thylakos, which meaning pouch or sac. "Thylakoid" means "pouch-like" with the -oid suffix.
ATP and NADPH are the twio substances that are used by the thylakoids to produce substance that store chemical energy.
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