In what way does crossing over influence the genetic variation of offspring?

A. Genes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.

B. Chromosomes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.

C. Genes from both parents are kept separate, which reduces the number of possible combinations that the offspring can receive.

D. Chromosomes from both parents are kept separate, which reduces the number of possible combinations that the offspring can receive.

Answers

Answer 1

Answer:

A and B are both correct.

Explanation:

Chromosomes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.


Related Questions

24. List some examples of cell specialization?

Answers

Answer:

trae blood cells

Muscle cells

Who knows anything about anesthesiology??? I'm in the 9th grade, but I think that's what I want to do when I get older.

Answers

the branch of medicine concerned with anesthesia and anesthetics

Answer:

Its the doctor thats puts patients to sleep

Explanation:

Brainliest?

plzzzzzzzzzzzz helpppppppppppppp

Answers

Answer: No it takes a long time to form a fossil. Fossils don’t form within a few weeks. It probably took at least a decade for the dinosaur fossils to form, maybe even a century.

Explanation:

Which one of the following components is responsible for the clotting of blood? Select one: O a plasma O b. leukocytes O c. hemoglobin O d. thrombocytes​

Answers

Answer:

D. thrombocytes​

Explanation:

The main function of thrombocytes is to stop the bleeding of injured blood vessels. In mammals, thrombocytes are anucleated cell fragments called platelets.

Thrombocytes is responsible for the clotting of blood.

What are thrombocytes?

The microscopic blood cells known as platelets, or thrombocytes, aid in blood coagulation. Your body naturally stops bleeding with platelets.

Plasma, red, white, and platelet-containing blood cells make up whole blood. Platelets, the lightest component of whole blood, are pushed to the walls of your blood vessels because they are the heaviest part of the blood.

This allows plasma and blood cells to flow through the center, allowing platelets to reach injury rapidly to stop bleeding.

Therefore, Thrombocytes is responsible for the clotting of blood.

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How do organisms survive in harsh or changing environments?

Answers

Answer:

organisms evolve in order to better equip them to survive in their environment

Explanation:

for example, polar bears have white fur so they can blend into their environment.

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An adaptation is a genetic change, or mutation, that makes the organism better able to survive in its new environment. These mutations are a normal part of the variation that exists in any population. Mutations can either be harmful, neutral, or beneficial.

What is the source of energy for organisms that use chemosythesis?

Answers

Answer:

During chemosynthesis, bacteria living on the sea floor or within animals use energy stored in the chemical bonds of hydrogen sulfide and methane to make glucose from water and carbon dioxide (dissolved in sea water). Pure sulfur and sulfur compounds are produced as by-products.

Explanation:

Hail starts as liquid water and then is swept up and down in the clouds, building
many solid layers before it falls to Earth.
True
False

Answers

Answer:

It will be true.

Explanation:

N/A

Answer:

true

Explanation:

hail is a firm if solid precipitation.

match the statements below with the appropriate term. Write the letter in the appropriate space.

Answers

Answer:1. A revenue not yet recognized; collected in advance.

B Unearned Revenues

2. Office supplies on hand that will be used in the next period.

A Prepaid Expenses

Explanation:

What is the scientific name for the walrus? Chordata Mammalia Mammalla Chordata O rosmarus Phoca O Phoca rosmarus O none of the above
help pleaseeeeeeee​

Answers

Answer:

None of the above

Explanation:

The scientific name of the walrus is Odobenus rosmarus.

Odobenus  is the genus name. Rosmarus is the species name.

They are in the phylum chordata , class mammalia , order carnivora, and family odobenidae. However, these are not included in the scientific name.

Therefore, none of the answer options are correct

63.5 cm
23 cm
43 cm
Calculate Find the volume of the suitcase

Answers

Answer:

the volume 62801.5 cm

Explanation:

dont forget the formula for volume of a rectangular prism is v = LWH

If in any organism a DNA molecule is 22% guanine, how much adenine will that DNA molecule contain?

Answers

Answer:

22% they play off of each other

Define ecological succession.

Answers

Answer:

the process by which the structure of a biological community evolves over time

Explanation:

Answer:

the process by which the structure of a biological community evolves over time. Two different types of succession—primary and secondary—have been distinguished.

Explanation:

What’s the answer? Fastest gets brainliest if it works!

Answers

Answer:

b) Water

Explanation:

Cellular respiration or aerobic respiration is a series of chemical reactions which begin with the reactants of sugar in the presence of oxygen to produce carbon dioxide and water as waste products.

what are the cause of forest fires only one

Answers

Answer:

Humans :(

Explanation:

One of the largest causes of forest fires are humans. Either by neglecting campfires, throwing cigarette butts, or arson. Or gender reveal parties lol.


HELP I HAVE LIKE 5 MINS LEFT

Answers

Answer:

B

Explanation:

evaporation and precipitation are the parts of the water cycle, the others are not

Would the genes for lactase be turned on or off after eating cheese?

Answers

Answer: On

Explanation: Lactase helps you digest lactose so it would be turned on after eating cheese.

A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its velocity is 4 m/s. But 6 seconds later, at the bottom of the slope, its velocity is 46 m/s. What is its average acceleration
Hurry

Answers

Answer:

i think the answer is -7

Explanation:

4 - 46 = -42       -42\6 is -7  i dont know if its right

What is science responsible for?
O technological evolution
O technological revolutions
O tragical revolutions

Answers

technological evolution

please help asap i will mark brainliest

Answers

Answer:

I would say the 3rd one because itakes the most sence

Answer:c because the compound has formed through 2 gases that made up a liquid the oxygen has bigger in size and is more abundant in mass while hydrogen is smaller but more abundant in numbers

Explanation:

all cells arise from pre-existing cells.

true or false ?​

Answers

that statement is true :)

Predict whether these concentrations would increase , decrease or stay the same if ammonia nitrifying bacteria

Answers

Answer:decrease, increase, stay the same in that order

Explanation:

what happens after we die?

Answers

Answer: Our bodies stay fresh for a short period time, then enter rigor mortis, then began the slow process of decomposition.

Explanation:

what is a biotic factor that affects population size A. weather B. human impact C. avaliable sunlight D. Trash consumption

Answers

Answer:

sunlight

Explanation:

im not sure but i think.

lolololololololololol

Answers

Answer:

How do I answer this.

Explanation:

Lololololo what’s the question

Which statement below best describes the purpose of meiosis in creating gametes?

Answers

The purpose of meiosis is to produce gametes, or sex cells. During meiosis, four daughter cells are produced, each of which are haploid (containing half as many chromosomes as the parent cell).

The purpose of meiosis is to create gametes. Thus, it reduces the number of chromosomes to half.

What is meiosis?

In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent).

The egg and sperm that combine during fertilization must be haploid or have only one pair of chromosomes, in order to sustain this state. Each diploid cell divides twice during meiosis to produce four haploid daughter cells, which are gametes.

In humans, autosome cells contain 46 chromosomes, while gametes contain 23 chromosomes. Hence, the main purpose of meiosis is to divide the genetic material in half.

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Life: Scientists have found signatures of life in
rocks from 3.5 billion years ago. That means life
existed in a world with very low oxygen! What
is the evidence?

Answers

Answer:The evidence to this is because oxygen, is produced by bacteria at that time! If they do That why would they need to use any oxygen? If i didn't get the answer you were asking then well sorry :/

hi pls help if u can,, will mark brainliest
1. How many food chains make up the food web?



2. Which organism is an herbivore?



3. Which organism is an autotroph?



4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?



5. Which organism is an omnivore?



6. Which organisms belong to more than one food chain?



7. Which organism belongs to more than one trophic level?



8. What are decomposers? From which trophic levels are the organisms that decomposers feed on?



9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?



10. Why do different trophic levels have different amounts of energy?

Answers

Answer:

1. 3

2. insects

3. plants

4. snakes  the 4th

5. birds

6.plant, bird, insect, snake

7. birds

8. Decomposers are organisms (bacteria and fungi) that break down dead organisms. They could be at all trophic levels

9.  pyramid of energy shows how much energy is retained in the form of new biomass at each trophic level, while a pyramid of biomass shows how much biomass (the amount of living or organic matter present in an organism) is present in the organisms.

10. energy is lost at each level. Most of the energy lost is lost as heat. Food webs and food chains both involve multiple trophic levels.

during diffusion,how do the molecules physically get from one place to the other?(spaceship tractor beam? wiged monkeys?)

Answers

The kinetic energy of the molecules results in random motion, causing diffusion.

The movement of individuals into an area is called
A. Demography
B. Carrying capacity
C. Immigration
D. Emigration

Answers

In the down you have the answer

Answer:

D. Emigration

Explanation:

The answer is D. because the actual definition for emigration is: "The act of leaving one's own country to settle permanently in another; moving abroad." The definitions between immigration and emigration are very similar but the actual definition for immigration is: "The action of coming to live permanently in a foreign country." so I would stick with D.

sorry if I'm not right I hope you do good!

A sequence of nucleotides in a DNA or RNA molecular is What?

Answers

Answer:

nucleic acid sequence

Explanation:

nucleic acid sequence
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