Polygenic Inheritance in which independent genes at four different loci are responsible for determining an individual's HLA tissue type, important in organ transplants and certain diseases.
Polygenic inheritance refers to the inheritance of a trait governed by more than one genes. More then three genes govern the inheritance of polygenic traits. Multiple independent genes have an additive or similar effect on a single quantitative trait.
Human height and color of skin and eyes occurs due to several genes, so it is an example of polygenic inheritance. The HLA system is inherited in a Mendelian manner and extensively polymorphic half are inherited from your mother and half from your father.
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the percentage of homozygous recessive individuals (for one particular trait) in a population is found to be 64%. assuming the population is at hardy-weinberg equilibrium, what is the proportion of the homozygous dominant genotype? (give your answer as a decimal between 0-1)
The percentage of the homozygous dominant genotype is 0.04 or 4%
An important fundamental principle of population genetics is the Hardy-Weinberg Equilibrium (HWE), which states that "genotype frequencies in a population remain constant between generations in the absence of disturbance by external factors."
if, [tex]p^{2}[/tex] = 64% = 0.64
Therefore, the percentage of the recessive allele in the population,
q = 0.8
Since, p + q = 1, the percentage of the dominant allele in the population, p = 0.2
Now, the percentage of homozygous dominant genotype in the population,[tex]p^{2}[/tex] = [tex](0.2)^{2}[/tex] = 0.04 or 4%
the percentage of heterozygous genotype, 2pq = 2(0.8)(0.2) = 0.32 or 32%
(complete question)
The percentage of homozygous recessive individuals (for one particular trait) in a population is found to be 64%. Assuming the population is at Hardy Weinberg equilibrium, what is the proportion of the heterozygous genotype? (give your answer as a decimal between 0-1)
p+q=1(p= freq. of dominant allele, q= freq. of recessive allele)
[tex]p^{2}[/tex] +2pq+ [tex]q^{2}[/tex] =1
( [tex]p^{2}[/tex]= proportion of homozygous dominant genotypes,
2pq = proportion of heterozygous genotypes,
[tex]q^{2}[/tex]=proportion
of homozygous recessive genotypes)
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Does every part of an organism have the same chance of becoming fossilized? choose the correct answers and their corresponding explanations.
No every part of an organism have the same chance of becoming fossilized . Hard parts of the body preserve because they have biologically deposited minerals.
Fossilization can be defined as the physical, chemical, and biological processes that lead to the preservation of plant and animal remains over time.
Fossils include the organisms remains, such as plant or animal tissues, shells, teeth or bones, they also include traces of life such as foot prints. Fossil are generally formed After an animal dies, their soft parts decompose leaving the hard parts, like the skeleton, behind. This becomes buried by small particles of rock called sediment.
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Dead plant and animal matter iscalledA. detritus.B. fungus.C. chloroplast.
Detritus is what dead solid organic material is called, which includes the remains of dead organisms, as well as fecal matter.
This means A. detritus is the right answer.
Compression creates what type of feature in a rock? *
A. Mud slides and water slides
B. synclines and anticlines
C. Mid oceanic ridges and tornadoes
D. strike-slip faults and normal faults
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______ is a specialized type of cell division that produces cells that are genetically different from each other.
Meiosis is a specialized type of cell division that produces cells that are genetically different from each other.
Cell division is the process through which all cells are created from other cells. Meiosis is a specific type of cell division that generates reproductive cells like sperm and egg cells as well as plant and fungus spores. A "parent" cell generally divides into two or more "daughter" cells during this process. The parent cell can transmit its genetic material in this manner from generation to generation.
Meiosis is a specific type of cell division that takes place in sexually reproducing organisms. It generates reproductive cells like sperm, egg, and spores in plants and fungi, as was previously indicated. In humans, germ cells go through a process called meiosis to develop into sperm or eggs.
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the discomfort associated with irritable bowel syndrome can be alleviated with low doses of the class of antidepressants that block the reuptake of serotonin from the synaptic cleft (the space between adjacent neurons). serotonin is a relatively small polar neurotransmitter used to transmit nerve impulses in the nerve tissue in the gut and central nervous system. serotonin is transported back into the releasing neuron up its concentration gradient and down a sodium gradient. how might an antidepressant block serotonin reuptake by the releasing neuron?
It could block active transport of serotonin back into the cell by blocking a serotonin-sodium symporter.
The gastrointestinal system, usually known as the stomach and intestines, are affected by the illness known as irritable bowel syndrome (IBS). Constipation, diarrhea, and stomach discomfort are all possible symptoms. There may also be cramping.
IBS is a chronic ailment that requires long-term management. The abdominal discomfort of patients who took antidepressants for their IBS symptoms significantly improved, and other IBS symptoms including diarrhea, constipation, bloating, nausea, or urgency decreased as well.
Selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants (TCAs) may both lessen general IBS symptoms. Approximately 55% of patients on TCAs or SSRIs will benefit, as opposed to 35% of patients taking a placebo.
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trematol is a metabolic poison derived from the white snake root. cows eating this plant concentrate the poison in their milk. the poison inhibits liver enzymes that convert lactic acid to other compounds for metabolism. why does physical exertion increase symptoms of poisoning by trematol? why does the ph of the blood decrease in a person who has digested trematol?
Here are the answers to the questions respectively:
Physical exertion increase symptoms of poisoning by trematol because the generation of lactic acid through fermentation, and when liver enzymes are inhibited, the accumulation of lactic acid lowers blood pH.The pH of the blood decrease in a person who has digested trematol because exercise stimulates metabolism, and blood pH rises as a result of the electron transport chain pushing H+ out of the mitochondria.A metabolic poison called trematol is made from the white snake root. The toxin is concentrated in the milk of cows that consume this plant. The toxin prevents the liver's enzymes from metabolizing lactic acid into other chemicals.
Our cells make lactic acid through a process known as fermentation when there is not enough oxygen present. Particularly in our muscles, the pyruvate from glycolysis is converted to lactic acid to replenish NAD+ from NADH, allowing glycolysis to continue producing ATP. This explains why exercise makes the symptoms worse.
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as a result of glycolysis, pyruvate oxidation and the citric acid cycle, only a small portion of the energy of glucose has been converted to atp. at this point, the majority of the usable energy is contained in:
The majority of the usable energy is contained in reduced electron carriers NADH and FADH2.
Glycolysis, pyruvate oxidation and the citric acid cycle only a small portion of energy is converted into ATP. Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH .
Pyruvate from glycolysis is converted to acetyl CoA so it can enter the citric acid cycle. Pyruvate is modified by removal of a carboxyl group followed by oxidation, and then attached to Coenzyme A. one molecule of pyruvate produces 15 ATPs in total.
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.
The accelerated growth and advances in taxonomy as a science occurred during:
the 1600's in England
the Renaissance
Roman culture
Greek culture
The accelerated growth and advances in taxonomy as a science occurred during B. the Renaissance
What is Taxonomy?This refers to the branch of science that has to do with the classification of plants and animals into a particular genus, or family based on shared characteristics and other biological factors.
Hence, we can see that during the Renaissance, the first breakthrough that occurred in the area of taxonomy came courtesy of the scientist Andreas Vesalius who wrote a treatise on the subject in the year 1543.
Also, the growing popularity of this topic led to the foundation of the first botanic garden in Padua, Italy.
Therefore, option B is the answer.
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The first major advance in taxonomy during the Renaissance was credited to the scientist Andreas Vesalius, who published a dissertation on the subject in 1543. Thus, option B is correct.
What contribution of Renaissance in science growth?The Renaissance saw the development of both the telescope and the microscope. This was brought on by advances in lens manufacturing.
With the introduction of the printing press and an increase in readers, these better lenses also aided in the creation of spectacles.
Therefore, the accelerated growth and advances in taxonomy as a science occurred during the Renaissance.
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nori is produced: a. through genetic modification of algae. b. by growing algae first in starter cultures, then in an estuary, and then made into sheets that are toasted. c. from yeast fermentation of partially digested algae. d. by an edible mushroom.
The correct answer is the option c from yeast fermentation of partially digested algae
The majority of fungus have several cells. A single-celled fungus known just as yeast typically develops on stale bread.
Mold, mushrooms, and algae are the only other fungus that have many cells. Fungi have a vast, multicellular hyphal network. Tubular cells make up the Hyphae filaments.
But because yeast is a single-celled fungus, it lacks hyphae.
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What is the description/function of lysosomes and vacuoles?
Answer:
Lysosomes are the waste cells. They get rid of old things. Vacuoles stores things for later use, like water and other important tings.
Hope this was helpful
The adaptive advantage associated with the filamentous nature of fungal mycelia is primarily related to ________.
The adaptive advantage associated with the filamentous nature of fungal mycelia is primarily related to an extensive surface area well suited for invasive growth and absorptive nutrition.
An adaptive advantage is a reproductive benefit an organism derives from being properly acceptable to the surroundings wherein it lives. Adaptive blessings are in all likelihood to result in an organism producing greater offspring than organisms without the adaptive benefit.
An adaptive advantage is an iterative approach to software development that includes hypothesizing, experimenting, and adjusting as teams move thru the manner.
An adaptive commercial enterprise approach enables a commercial enterprise to work proactively on a continual foundation to obtain lengthy-time period desires and fast adjust those desires whilst essential. that is accomplished by means of figuring out and speedy enforcing short-term techniques and movements to achieve bigger image goals.
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Jackrabbits’ large ears are an adaptation for _______. a. hunting prey b. enhanced hearing c. storing water d. dissipating heat please select the best answer from the choices provided a b c d
Jackrabbits' large ears are an adaptation for dissipating heat.
Jackrabbits inhabit desert environments where the days are quite warm. Their ears are a coping mechanism for the heat in the desert. Depending on the temperature, a network of blood arteries in the big, thin ears regulates blood flow. They have quite large ears. A jackrabbit's ears are undoubtedly good listeners, but they also serve as radiators.
They enhance blood flow via the ears to remove heat after a race and on warm days. They reduce blood flow through the ears at night to keep you warm and also increase blood flow via the ears to eliminate heat after a race. They keep the body warm on chilly nights by reducing blood flow through the ears.
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brachydactyly is a shortening of fingers and toes due to unusually short bones. there are many different types of brachydactyly and one type (type d) is due to an autosomal dominant allele, but the homozygous dominant genotype results in embryonic lethality. what is the percent chance ( %) that two individuals with type d brachydactyly will have a child who does not have brachydactyly? enter your answer as a whole number %.
There will be 1/3% chance that two individuals with type d brachydactyly will have a child who does not have brachydactyly
Brachydactyly type D is a clinically recognized disorder marked by a thumb that is relatively small and spherical with an accompanying broader nail bed. It is also known as short thumb or stub thumb and incorrectly referred to as clubbed thumb.
Because it is a dominant genetic trait, a child can inherit the disorder from either parent. If you have brachydactyly, there is a good chance that your family members do too. Many brachydactyly cases take place in the absence of any additional medical issues.
Therefore, there will be 1/3% chance that two individuals with type d brachydactyly will have a child who does not have brachydactyly.
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crossing over between sister chromatids does not result in recombination of genetic material while crossing over between non-sister chromatids does because
Crossing occurs between sister chromatids that does not help in recombination because sister chromatids have the similar alleles, on the other hand non sister chromatids have different alleles .
Crossing over mostly occurs in-between prophase I and metaphase I it is the place were two homologous non-sister chromatids combine with each other and share their genetic material in order to form two recombinant chromosome sister chromatids.
Crossing over that takes place between sister chromatids, are genetically identical, such crossing over will not result in genetic recombination. After crossing over, the sister chromatids for each chromosome that are no longer identical to one another.
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in muscle, what does the source of atp depend upon? multiple choice question. the duration of exercise the size of the muscle the location in the body the number of fast glycolytic fibers
In muscles, the source of ATP depends on the duration of exercise.
The duration of exercise is an important factor in determining the source from which ATP is derived in the muscles.
Initially, when there is enough supply of oxygen, the body will use the method of aerobic respiration for the production of ATP. By the aerobic method, carbohydrates, fats and proteins derived from the food can be used as an energy source.
When the time duration increases, the muscles will switch to anaerobic respiration as there will not be a shortage of oxygen. In this case, energy will be derived from glucose that we get from the breakdown of glycogen. Glycogen is the form in which energy is stored in the body.
Hence, the source of ATP will be dependent on the duration of exercise.
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Examples of Models
of Elements
0₂
Oxygen
He
Helium
S₁
Sulfur
Examples of Models of Compounds
A. Only elements are gases.
H₂O
Water
CO₂
Carbon dioxide
What is the difference between an element and a compound?
B. Only elements have one kind of atom.
C. Only elements have an odd number of atoms.
D. Only elements form large molecular structures.
NH,
Ammonia
The correct option is (B) only elements have one kind of compound.
What are elements?An element is a pure substance made up of only one kind of atom, each of whose nuclei contains the same amount of protons.An element is a group of atoms that all have the same number of protons in their atomic nuclei. An element's atoms always contain the same amount of protons, however, the mass can differ depending on the number of neutrons present.Atoms of the same element that contain different numbers of neutrons are known as isotopes. There are currently 118 elements, the first 94 of which are naturally occurring, and the last 24 of which are synthetic.Currently, an element, which is a complete chemical compound, corresponds to a single entry in the periodic table. They can only exist as molecules or atoms and cannot be broken down into smaller parts.Compounds:
Chemical substances known as compounds are composed of two or more elements that are chemically bonded together in a certain proportion.Therefore, the correct option is (B) only elements have one kind of compound.
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Record your data from each trial in the data chart below:
Type of Factor
Beginning Frog Count
Simulation 1 (Low)
Simulation 2 (High)
Predators (alligators)
Pollution
Food (mosquitoes)
Limiting factors are the biotic and abiotic environmental elements that model a species population size affecting their carrying capacity. 1) alligators and mosquitoes 2) pollution 3) alligators 4) pollution 5) frogs are control species 6) + alligators, - frogs // + mosquitoes, + frogs.
What is a limiting factor?Limiting factors are all the environmental elements, biotic and abiotic, that act directly on populations and individuals, limiting their distribution and growth.
These factors affect the carrying capacity, influencing on natality and mortality rate, migration, etcetera.
In the exposed example, limiting factors are
Alligators (predator)Pollution Mosquitoes (food)These three elements model the Frog population size according to their magnitude and population sizes.
Two simulations per factor were performed in order to see how much each factor affected the frog's populations.
The data chart shows the following tendency,
Alligators
- Low number of alligators → there was an increase in frogs number from
10 to 18.
- High number of alligators → there was a decrease in frogs number from
10 to 3.
Pollution
- Low pollution level → there was no change in frogs number
- High pollution level → there was a decrease in frogs number from
10 to 7.
Mosquitoes
- Low number of mosquitoes → there was a decrease in frogs number
from 10 to 5.
- High number of mosquitoes → there was an increase in frogs number
from 10 to 17.
Information from the graph expresses thesame tendency,
Alligators
- Low number of alligators → there was an increase from 50k to 90k.
- High number of alligators → there was a decrease from 50k to 10k.
Pollution
- Low pollution level → there was no change
- High pollution level → there was a decrease from 50k to 35k.
Mosquitoes
- Low number of mosquitoes → there was a decrease from 50k to 25k.
- High number of mosquitoes → there was an increase from 50k to 85k.
1. Which limiting factor(s) in this lab simulation are biotic?
Alligator (predator) and mosquitoes (food)
2. Which limiting factor(s) in this lab simulation are abiotic?
Pollution
3. Which limiting factor impacted the cricket frog population the most? Use evidence to support your answer.
According to the chart and to the graph, the presence/absence of predators impacted the most on the frogs population.
4. Which limiting factor impacted the cricket frog population the least? Use evidence to support your answer.
Pollution is the factor that least affected the frogs population size.
5. Mosquitoes can carry and transmit disease to animals and humans. Explain how the cricket frog plays an important role in limiting the spread of mosquito-borne illnesses like West Nile virus and malaria.
Since frogs feed on mosquitoes, they become a natural control species for the mosquitoes, limiting their spread and effects on humans and animals.
Frogs are a biotic limiting factor for moesquitoes population.
6. Predict the long-term effects of these limiting factors on the cricket frog population in the pond ecosystem.
It depends on the pond ecosystem.
If there are too many alligators, frogs population will decrease. This decrease will probably affect alligator population size (assuming no other source of food for this last species), and only when predator population size decreases, frogs population will increase again. If there are too many mosquitoes, frogs population will increase, which will cause a decrease in mosquitoes population. Less mosquitoes will drive to less frogs. The decrease in the number of frogs will increase the number of mosquitoes again.↑ alligators and ↑ mosquitoes ⇒ ↓ frogs
↓ alligators and ↑ mosquitoes ⇒s ↑ frogs
↑ alligators and ↑ mosquitoes ⇒↓frogs
↓ alligators and ↓ mosquitoes ⇒ ↓frogs
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explain why most nerve cells have a myelin sheath
Myelin is a lipid-made substance that surrounds the axons of some neurons. This myelin sheath acts as an electrical insulator and speeds up the propagation of the action potentials inside the neurons' axons.
When there is a failure to control the cell cycle, resulting in uncontrolled cell growth it is known as.
When there is a failure to control the cell cycle, resulting in uncontrolled cell growth it is known as cancer.
What is cancer?Cancer is a multifactorial disease associated with uncontrolled growth of a given cell type, which is generally caused by a failure in the factors that control the progression through the cell cycle. These failures are generated by mutations in the genes that control the cell cycle.
Therefore, with this data, we can see that cancer is caused by uncontrolled cell growth and failure in the genes associated with the control of the cell cycle.
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which of the following is a major difference between prokaryotic cells and eukaryotic cells? eukaryotic cells have more intracellular organelles than prokaryotes. prokaryotes are not able to carry out aerobic respiration, relying instead on anaerobic metabolism. prokaryotes are generally larger than eukaryotes. prokaryotes have cells but eukaryotes do not.
The major difference between prokaryotic cells and eukaryotic cells is that eukaryotic cells have more intracellular organelles than prokaryotes (option A).
What are eukaryotes?Eukaryotes are any of the single-celled or multicellular organisms of the taxonomic domain Eukaryota, whose cells contain at least one distinct nucleus.
On the other hand, prokaryotes are organism whose cell (or cells) are characterized by the absence of a nucleus or any other membrane-bound organelles.
Eukaryotic organisms have membrane bound organelles such as chloroplast, mitochondria, lysosomes and endoplasmic reticulum while prokaryotic organisms lack these organelles.
Based on this, eukaryotic organisms will possess more intracellular organelles than their prokaryotic counterparts.
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Meat tenderizers are sometimes used as a home remedy for treating stings inflicted by the portuguese Man-of-war. Based on this information, to what class of organic compounds do you su[ppose the toxins relesed by the man of war belongs?
The class of organic compounds in which the toxins released by the man of war belongs to is referred to as protein.
What is a Protein?This is referred to as a biomolecule which is responsible for the growth and the repair of wornout tissues present in the body of organisms. Protein also form part of the bodily fluids such as enzymes, etc.
Papain is referred to as a proteolytic enzyme which is extracted from pawpaw. Since it is an enzyme then we can deduce that it is a protein which is therefore the reason why it was chosen as the most appropriate choice.
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Hii ill give brainliest to whoever is correct !! :)
Why must the bonds of these molecules be broken before anything else happens?
Energy needs to be released.
Sunlight is required.
Water is required.
Energy is not necessary.
g which of the following tissues is found in both the stem and the roots of a plant? meristematic tissue vascular tissue all of these tissues are found in both the stem and the roots. dermal tissue ground tissue
The tissues is found in both the stem and the roots of a plant is vascular tissue.
What is vascular tissue, and its function?In higher plants, vascular tissues are intricate conducting tissues made up of several cell and elemental kinds. Xylem and phloem are the two primary elements of plant vascular tissue. These tissues are in charge of moving water and nutrients throughout the plants.
The two primary tissue types that make up the vascular system are xylem and phloem. From the roots to the leaves, the xylem transports water and dissolved minerals up the stem of the plant. From the leaves to the roots, food is transported by phloem.
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Answer: Its all of them
Explanation:
ANSWER ALL ASAP
FOR BRAINLIEST!!!
Use this for reference: In this lab, we will test the catalase enzyme found in beef liver tissue. First, we will observe the chemical reaction of catalase and hydrogen peroxide with the liver enzyme at room temperature. This is as close as we can get to "normal" temperature conditions for this enzyme.
Then, we will test the enzyme function after it has been cooled in the freezer or heated in boiling water. As we conduct the experiment, pay attention to the steps taken and be thinking about factors that should be constants in this lab
The term "independent variable" means precisely what it sounds like. It is a variable that is independent of the other factors you are attempting to assess.
What is independent and Dependent variable?Dependent variables are so named because their values are explored in an experiment under the assumption or requirement that they are dependent, by some law or rule, on the values of other variables.The group that does not get the new medication being investigated in a clinical trial. This group is compared to the group that receives the new treatment to see if the new treatment is effective.Assume you want to put a new ADHD medicine to the test. One group would be given the new medication, while the other would be given a tablet that looked precisely like the one given to the others, but it would be a placebo. The control group would be the group that receives the placebo. A control group is the "untreated" group with which an experimental group (or treatment group) is contrasted in experimental designs. It is made up of research units that did not receive the treatment whose effect is being studied.To learn more about independent variable, refer to:
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which statement regarding the human genome is false? long stretches of repetitive dna are prominent at centromeres and ends of chromosomes. the human genome is smaller than that of the bacterium haemophilus influenzae. current estimates are that there are about 21,000 genes in the human genome. the human genome contains approximately 19% introns.
The 23 pairs of chromosomes in cell nuclei plus a tiny DNA molecule present in each mitochondria make up the human genome, which is a full set of nucleic acid sequences for humans.The nuclear genome and the mitochondrial genome are often treated separately.
Why is the human genome important? What is it?
The 20,000–25,000 genes that make up the human body are all encoded in the coding portions of DNA, which also make up the noncoding regions of DNA. Together, these two types of DNA make up the human genome.The whole human genome's DNA sequence was known by 2003. A few viruses have RNA (ribonucleic acid) genomes, but the majority of genomes, including those of humans and all other cellular life forms, are formed of DNA (deoxyribonucleic acid).The chains of monomeric subunits known as nucleotides make up the polymeric molecules known as DNA and RNA. the CDC's list of the top causes of death).The genetic makeup of every human being is 99.9% same.Differences in the 0.1 percent that is left can reveal crucial information about the origins of diseases. Nearly every one of the trillions of cells that make up our body, including immune cells that help protect us from constant external attack and neurons that carry impulses throughout the brain, have the same 3 billion DNA base pairs that make up the human genome, which is our whole genetic code. As we discovered in the above example, there are three genome types that exist since the mutation is A–G: AA, AG, and GG.The GG type of these three genome types has the most anti-alcohol activity, whereas the AA type has the least activity and can barely digest alcohol. The genome is divided into 23 pairs of sex chromosomes (XX in the female and (XY) in the male), as well as 22 paired chromosomes, known as autosomes.When the X chromosome is included, the haploid genome is 3 054 815 472 base pairs; when the Y chromosome is used in its place, it is 2 963 015 935 base pairs Repeats, DNA repeats, and repetitive DNA are all terms used to describe DNA fragments that are found in many copies throughout the genome.Due to variations in the amount of their repeat units brought on by mutations involving various mechanisms, these sequences display a high degree of polymorphism (Tautz, 1989). influenzae adhesin genes hmw1 and hmw2, in addition to 14 clones having genetic material that has similarities with 13 other bacteria' genes.The frequency of these tester-specific genetic areas among H. pylori was determined in order to evaluate the potential relevance of these genes to the pathogenesis of acute otitis media. These 21,000 genes create various proteins at various periods to create the many diverse cell types (such as muscle cells, skin cells, brain cells, etc.) that make up an individual human.However, only 1% of the total DNA sequence is made up by the 21,000 genes in the human genome.To learn more about human genome refer
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PLS HELP! You have to color code the image and that’s it
Outer membrane - light green
Inner membrane - brown
Thylakoids - dark green (label it too!)
Entire stack of granum - yellow
Stroma - blue
1. A chloroplast is surrounded by two membranes.
2. The skin's surface is smooth
3. Thylakoids, or individual sacs generated by the inner membrane, are
stacked like pancakes in rows.
4. If a thylakoid has pigment, what color will it be?
green; chlorophyll.
5. Accessory pigments are another kind of pigments that absorb sunlight. These pigments are colored.
Orange, yellow, red, and brown
6. Thylakoids are stacked and are known as Grana (plural) or GRANUM (singular).
7. Lamellae attach stacks or grana to one another.
What is the thylakoid membrane's greenish pigment called?
the color chlorophyll
The thylakoid membrane contains the green pigment chlorophyll, and the region between it and the chloroplast membranes is known as the stroma.
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which substance is secreted primarily by the stomach cells and promotes eating and weight gain by increasing smell sensitivity, stimulating appetite, and promoting efficient energy storage? a. lipoprotein lipase (lpl) b. ghrelin c. cholecystokinin (cck) d. leptin
Small amounts of ghrelin are also released by the small intestine, pancreas, and brain. Ghrelin is primarily produced and released by the stomach.
Ghrelin serves a variety of purposes. Because it stimulates appetite, increases food intake, and encourages fat storage, it is known as the "hunger hormone." The peptide known as ghrelin, or the "hunger hormone," is produced by ghrelin cells in the gastrointestinal tract and acts as a neuropeptide in the central nervous system. Ghrelin controls both the distribution and rate of use of energy in addition to controlling hunger. Ghrelin is secreted when the stomach is empty. Your stomach produces the hormone ghrelin. When your stomach is empty, ghrelin is released to tell your brain that it is time to eat.
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BRAINIEST IF CORRECT What is the ER most like in the cell
A) A factory because it makes proteins
B) A gate because it lets things in and out of the cell
C) The brain because it has the instructions and the genetic material
D) A highway with trucks because it transports molecules
Answer:
D) A highway with trucks because it transports molecules
Explanation:
Molecules, such as proteins, are transported from the ER in small sacs called transport vesicles to their proper destinations, much like on an intracellular highway.
in humans, oculocutaneous (oca) albinism is a collection of autosomal recessive disorders characterized by an absence of the pigment melanin in skin, hair, and eyes. that is, normal pigmentation (a) is dominant over albinism (a). for this question, assume it is a single gene with two alleles. if both parents display the albino phenotype, what possible phenotypes may be observed in their offspring?
The albino phenotype is what possible phenotypes may be observed in their offspring that is aa only.
In all types of OCA and some types of OA, albinism is inherited in an autosomal recessive inheritance pattern. This means that the child must get two copies of the albinism-causing gene one from each parent. OCA is inherited as an autosomal recessive disease. Recessive disorders occur when individuals inherit an abnormal gene for the same trait from each parent.
Allele pairs of each gene stay together during gamete production. Albinism is passed from parent to child through genes. With most types of her OCA, both parents must carry the albinism gene for a child with albinism to be born. Both parents may have normal pigmentation but still, carry the gene. Genetic testing can be used to determine if the fetus has albinism.
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