Answer:
When genes are close together on the same chromosome, they are said to be linked. That means the alleles, or gene versions, already together on one chromosome will be inherited as a unit more frequently than not.
Explanation:
:)
When genes are close together on the same chromosome called as linked genes, means the alleles present together on one chromosome and it will be inherited as a unit.
What is chromosome ?A chromosome is located in nucleus of the cell is the main carrier of genes or DNA; It is a thread-like structure observed in plant, animal and human cells and composed of molecule of DNA (Deoxyribonucleic acid) and histone proteins.
DNA content ranges from 30 to 40 %, the amount of proteins from 50 to 65%, and RNA content ranges from 1 to 10% in chromosome.
There are Two types of protein present such as histone and non-histones proteins where histone protein constitute portion (90% of total protein), whereas non-histone protein occupy a small portion (around 10% of total protein).
The histone protein is basic in nature, whereas, the DNA is acidic, so neutralization occur, DNA in chromosome can be present as forms such as Euchromatin and Heterochromatin.
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one of the following parts of cell is common to all type of cells.
A. Cell Wall
B. Large vacuole
C. Small Vacuole
D. Chloroplast
Which of the following is NOT true about systems that cycle matter?
A Living things play a role in the cycling of matter.
B Matter changes form as it cycles.
C Some matter is destroyed as it cycles through the environment.
D Matter is constantly cycling through the environment
Answer:
Matter
Explanation:
Matter makes up all visible objects in the universe, and it can be neither created nor destroyed.
Answer:
The Answer That Fits The Best Is (D, 4rth) One
What is the primary physical characteristic of the Middle East?
Answer: The Middle East region represents an area of over 5.0 million square miles. The physical geography of the Middle East is varied. Vast deserts are common in the region. The Sahara Desert runs across North Africa, essentially limiting settlement to along the Mediterranean coastline and in Egypt along the Nile River.
Explanation:
Meiosis Questions:
1. How many chromatids are present in one homologous pair of chromosomes?
2. What is meant by “crossing-over” in meiosis, and how did your model depict this?
3. What effect does crossing-over during meiosis have on the genetic makeup of daughter cells?
4. Why must the number of chromosomes in reproductive cells (gametes) be different than the number of chromosomes in the rest of an organism’s cells (somatic cells)?
Explanation:
Two sister ChromatidsCrossing over is the exchange of genetic material between two homologous chromosomes to give rise to recombinant chromosomesallows the daughter cells of meiosis to be genetically unique from one another. because the DNA of the parent cell is shuffled before the cell divides.Why does mass determine how fast and how much energy a star can generate?
Answer:
A star's life is a fight against gravity, and the gravity is related to mass. Without gravity and mass, stars could not exist in the sky.
In order for the egg to reach the uterus, contractions need to occur on the uterine wall to move the egg. What two systems work together to make this
happen?
A) Reproductive and Integumentary
B) Immune and integumentary
C) Circulatory and Digestive D) Reproductive and Muscular
In multicellular organisms, the process of cell division leads to _________.
A. a decrease in cell number
B. an increase in cell number
C. the death of many cells
D. a destruction of all cells
Answer:
B. An increase in cell numbers
Explanation:
It adds more cells for cell divison they increase in numbers.
-Hope This Helps!
-Justin:)
Answer:
B. Increase in cell Number
Explanation:
Cell divisision is the process in which a cell divides itself to create new cells. Therfore increasing the cell number.
Why do anole lizards represent an excellent proxy for studying evolution?.
Anole Lizards represent an excellent proxy for studyimg evolution because : Anole lizards are examples of convergent evolution
What is a Convergent evolution ?A convergent evolution is a type of evolution where different living things acquire the same type of adaptations independently for the same kind of challenges in that occur in similar ecological niches. Anole lizards are examples of convergent evolution.
Hence we can conclude that Anole Lizards represent an excellent proxy for studyimg evolution because Anole lizards are examples of convergent evolution.
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Describe the theory of evolution in your own words. How does this theory relate to the principle of natural selection?
Answer:
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Explanation:
Original Question:
Describe the theory of evolution in your own words. How does this theory relate to the principle of natural selection?
Answer and Explanation:
Evolution means the adaption of animals, plants, species, etc. This study ties in with the theory of humans being descended from other animals; specifically chimpanzees. Over the course of time, Animals are believed to adapt to the environment they live in. One common example would be giraffes. In the past, they used to have shorter necks that couldn’t the leaves in a tree. Throughout the years, many breeds tended to have offsprings that had long necks. That is why giraffes have longer necks now.
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Side note: You might want to change your wording if you decide to use my answer. It would be considered plagiarism. I know it might be late but I hope this helps in future reference. Hope I helped!
Select all of the following that are TRUE regarding prokaryotic and eukaryotic cells.
prokaryotic cells have a nucleus, eukaryotic cells have a nucleiod a
region
Both cells contain the organelle the ribosome
Eukaryotic cells have mitochondria; prokaryotic cells do not
Eukaryotic cells contain DNA; prokaryotic cells do not
Both cell types contain membrane bound
organelles
If cortisol levels remain high for prolonged periods, the _____ may not function at an optimal level.
If cortisol levels remain high for prolonged periods, the immune system may not function at an optimal level.
(04.03 MC) Which description properly describes a step involved in cellular respiration?
A. Glucose is created, then the energy gained is transferred to the energy molecule.
B. Carbon dioxide and water are released after the energy molecule is charged.
C. Water is divided into carbon dioxide and glucose.
D. Oxygen is combined with ATP to energize it.
Answer:
B
Explanation:
A subset of a population selected to represent the population is a:.
According to scientists, the organisms in the picture all evolved from a common ancestor. What evidence backs up this theory? Question 1 options: The appendages of these organisms share similar function. These organisms contain very similar bone anatomy. These organisms are all of the same species. These organisms all lived in similar habitats and were therefore under similar environmental pressures.
Explanation:
These organisms contain very similar bone anatomy. i think that's it
One species of tree snail is found on a single island in the pacific. A storm knocks down one tree that contains 50 snails and it drifts at sea for a week before coming ashore at a nearby island. The snails make it to shore and over time evolve into a new snail species. This is an example of:.
Answer:
the theory of evolution is the answer
How do the kidneys compensate for acid-base imbalances?.
Kidneys compensate for acid-base imbalances by : Reabsorbing HCO₃ from urine back to the blood and also secreting H⁺ back to the urine.
Acid-base ImbalanceWhen the amount of acid or base produced in the human body is greater than or less than the required amount of acid or base, and the rate of excretion by the kidneys is above or below normal, the body will experience an Acid-base imbalance situation.
To correct acid-base imbalance in the body the kidney will reabsorb HCO₃ form the urine and while secreting Hydrogen ions back to the urine.
Hence we can conclude that Kidneys compensate for acid-base imbalances by : Reabsorbing HCO₃ from urine back to the blood and also secreting H⁺ back to the urine.
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A normal haired man marries a normal haired woman, but they have a son who develops baldness. Explain how the son inherited this disorder and from who he inherited the trait.
Explanation:
maybe the mom or dad's dad was bold and it skipped a generation
Tall oak trees are better able to compete for sunlight in crowded forests. short oak trees are at a
disadvantage. what type of selection appears to have made oak trees grow tall?
a. stabilizing selection
b. directional selection
c. disruptive selection
The type of selection that makes tall oka trees a better competitor for sunlight over short ones would be directional selection.
What is directional selection?It is a kind of natural selection in which individuals with traits at one extreme end of the population are better adapted to the environment.
In this case, tall and short oak trees are at the two extreme ends of the population mean with tall oak trees being able to better competitors for sunlight than the short ones.
The selection is, thus, directional, towards the tall trees rather than the average or the short ones.
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At the superior end of the esophagus, the superior esophageal sphincter is a thickened ring of ______ muscle marking the area where the esophagus and the pharynx meet.
The superior esophageal sphincter is a muscular ring that separates the pharynx from the esophagus, has voluntary activity and is responsible for initiating swallowing.
What is the superior esophageal sphincter?
It is located immediately after the pyriform sinuses, it is a muscular ring located in the high pressure area between the pharynx and the esophagus.
This prevents the passage of air into the digestive tract during inspiration and the reflux of gastric material into the pharynx, relaxing to open the esophagus.
In order for a muscle-building athlete to keep muscles in good shape, it is necessary to synthesize more muscle protein than is consumed, which is known as nitrogen balance..
Therefore, we can conclude that the superior esophageal sphincter is a muscular ring that separates the pharynx from the esophagus, has voluntary activity and is responsible for initiating swallowing.
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Which is NOT an example of a transfer payment?
A. welfare
B. salaries
C. Medicare
D. Social Security
Answer:
B. Salaries
Explanation:
Answer:
b
Explanation:
12.
A lizard species mostly eats fruit from one
particular type of tree. If a virus kills most of
these trees, which individual lizards will most
likely survive?
A.
lizards that can climb higher in the fruit trees
B.
lizards that have darker coloration
C.
lizards that can find other types of food
D.
lizards that produce more offspring
which statements best compare the function of an ATP molecule to a DNA molecule
ATP helps in muscle contraction, active transport, formation of lysosomes, etc., while DNA carries all the genetic information related to an organism.
What do you mean by DNA molecule?The DNA molecule may be defined as the molecule that carries the genetic information for the development and functioning of an organism.
ATP delivers energy for chemical reactions in the cell. DNA maintains and communicates the genetic information of organisms.
Therefore, the above statement that best compares the function of an ATP molecule to a DNA molecule.
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In plants, the vascular tissue made of dead cells that transport water and minerals from the roots is called.
Food webs model the way _______ move through an ecosystem.
Food webs model the way energy move through an ecosystem
What is food webFood web is a chain of food chains contained in an ecosystem, It models the way through which energy is transferred through the ecosystem. The food chains represents the path through which energy is transferred.
Hence we can conclude that Food webs model the way energy move through an ecosystem.
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Which of these types of fertilizers is the best for maintaining the long-term health of farm soil? (select all that apply) organic matter compost chemical fertilizers water, i have no idea what subject this is in so i put biology.
Answer:
water, compost , and chemical fertilizer
Water, compost , and chemical fertilizers is the best for maintaining the long-term health of farm soil.
What do you mean by chemical fertilizers?Chemical fertilizers, such as urea, diammonium phosphate (DAP), and single superphosphate (SSP), are used to maintain the shortage of nitrogen, phosphorus, and potassium in the soil.
Most fertilizers that are commonly used in agriculture contain the three basic plant nutrients: nitrogen, phosphorus, and potassium. Some fertilizers also contain certain "micronutrients," such as zinc and other metals, that are necessary for plant growth.
Chemical fertilizers will nourish your plant, but the minerals will not linger in your soil. By creating rich, nutrient-dense soil with organic materials, your lawn will have a better chance of thriving on its own tapping into stored minerals when needed.
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Base your answer(s) to the following question(s) on the Earth Science Reference Tables, the diagram below, and your knowledge of Earth science. The diagram is a geologic cross section of the rocks that underlie parts of southern New York State and northern New Jersey. Landscape regions are indicated across the top of the diagram. Which important New York State fossil is most likely to be found in the Triassic Age rocks in the Newark Lowlands?
Eurypterid
Mastodon
Coelophysis
Naples tree
Answer:
Coelophysis is most likely to be found in the Triassic Age rocks in the Newark Lowlands
C-reactive protein is released into the bloodstream in response to.
Answer:
Inflammation
Explanation:
Prokaryotes are organisms that do not have defined nuclei in their cells. Eukaryotes are organisms that have cells with membrane-bound nuclei. In which of the following kingdoms are prokaryotes found?
A. Plant and Animal only
B. Bacteria and Archaea only
C. Bacteria, Archaea, Protist and Fungus only
D. Protist, Fungus, Plant and Animal only
Answer: I took it this year so I am sure the answer is c .
Describe the process in which trees communicate with one another
Answer:
Trees share water and nutrients through the networks, and also use them to communicate. They send distress signals about drought and disease, for example, or insect attacks, and other trees alter their behavior when they receive these messages.
Consider three independently assorting gene pairs, A/a, B/b, and C/c, where each demonstrates a typical dominance (A-, B-, C-) and recessiveness (aa, bb, cc) relationship. What is the probability of obtaining an offspring that is triply dominant from parents that are AaBbcc and AaBbCc
Assuming complete dominance and following the product probability rule, the probability of obtaining an offspring that is triply dominant AABBCC is 1/32.
What is complete dominance?
We talk about complete dominance when the dominant allele completely masks the recessive allele. It is an inheritance pattern.
This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant phenotype. The dominant allele is hiding the expression of the recessive allele.
Many genes show complete dominance.
In the exposed example, we need to cross AaBbcc x AaBbCc and calculate the probability of getting offspring that is triply dominant. To do it, we will follow the product probability rule.
What is the product probability rule?The product probability rule allows us to calculate the probability of occurrence of event A and event B at the same time.
It is about a joint probability of two or more events that might happen simultaneously, not excluding each other.
This rule is based on the dependence or independence of the events. If two events A and B are independent of each other, the occurrence of one of them does not affect the occurrence of the other one.
For independent events, the rule establishes that, given two different events A and B, the probability of occurrence of both together is
P(A∩B) = P(A) x P(B)
Since these are independent genes, for easier calculations, we can perform crosses that involve each of the genes separately -events-, and then multiply de results according to the genotype we are interested in (AABBCC).
Gene A
Parentals) Aa x Aa
Gametes) A a A a
Punnett square) A a
A AA Aa
a Aa aa
F1) 1/4 AA
1/2 Aa
1/4 aa
Gene B
Parentals) Bb x Bb
Gametes) B b B b
Punnett square) B b
B BB Bb
b Bb bb
F1) 1/4 BB
1/2 Bb
1/4 bb
Gene C
Parentals) cc x Cc
Gametes) c c C c
Punnett square) C c
c Cc cc
c Cc cc
F1) 1/2 Cc
1/2 cc
The probability of getting and individual with genotype AABBCC is
P(AABBCC) = P(AA) x P(BB) x P(CC)
P(AABBCC) = 1/4 x 1/4 x 1/2
P(AABBCC) = 1/4 x 1/4 x 1/2
P(AABBCC) = 1/32
The probability of obtaining an offspring that is triply dominant AABBCC is 1/32.
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