what causes genetic variation in meiosis?
A. chromosomes lining up
B. separation of chromosomes
C. crossing over chromosomes
D. chromosomes pulling apart​

Answers

Answer 1

Answer:

C. crossing over chromosomes

Explanation:

Process of Meiosis. A man produces sperm and a woman produces eggs because their reproductive cells undergo meiosis.which cause Crossing Over.


Related Questions


If a person exerts 150 N of force to move 10 meters, then how much
work did they do?

Answers

I do t know how to answer this really, but the acceleration of this object is 15 m/s.

a population distribution pattern that can indicate predation is

Answers

Answer:

clump

Explanation:

A population. This type of pattern. This type all better is seen in and seen in species. To prevent a species two prevent radiation radiation. They remain in groups. They remain in groups to remain safe to remain safe from predation from regulation. So climb to distribution. So Klump distribution. This tribute to shin indicates indicates relation random distribution distribution is seen when is seen. Yeah, this does not indicate tradition. This does not indicate relation uniform distribution, uniform distribution is seen more in plants and seen loan in Lawrence rather than animals rather then animals. Again, this does not indicate traditions. This does not indicates tradition. Basin distribution is not relevant, not relevant according to according the ocean given ocean. So that's why this option is incorrect. So all options are incorrect except a option that is Klump and a option is got it. That is clumps.

Look at the diagram Which structure holds the original code from the DNA gene?​

Answers

Answer:

The answer is 4/D)4. Don't expect me to get scientific in this, I'm using brainly and coursehero after all. Sorry for being a year late, hopefully it took you a year to finish the test. . .

Explanation:

K12/Keystone


Potato Osmosis Lab
Perform the calculations for the following on a separate sheet of paper:
-300 mL of 0.0 M sucrose solution
-300 mL of 0.2 M sucrose solution
-300 mL of 0.4 M sucrose solution
-300 mL of 0.6 M sucrose solution
-300 mL of 0.8 M sucrose solution

Answers

Answer:

- 102.6 g

-205.2 g

- 41.04 g

- 61.56 g

- 82.08 g

Explanation:

Hello there?

I have attached the calculations for the above answers in the images above.

I hope it helps you out to understand better.

Which of the following processes does not contribute to carbon cycling?
A. Condensation
B. Photosynthesis
C. Combustion
D. Respiration

Answers

Answer:

A. Condensation

Explanation:

Condensation is the process that does not contribute to carbon cycling. It is the process by which water vapor in the air is changed into liquid water.

Answer:

A. condensation

Explanation:

#carry on learning

Some fungal species live in or on plants, producing compounds that can kill herbivores while feeding off of sugars from its plant host. What type of relationship does this fungus have with its host

Answers

This is a symbiotic relationship because both the plant gets benefitted with protection from the fungus, and the fungus gets benefitted by getting food from the sugars in the plant.

Which of the following choices best describes ‘ovulation?
A. An egg is released from the ovary.
B. An embryo sinks into the uterus lining.
C. The sperm and egg nuclei fuse.
D. The ejection of sperm through the penis.

Answers

Ur answer would be A

The cell theory states that
(a) all organisms are made of one or more cells.
(b) all cells come from already existing cells.
(c) all the life functions of organisms occur within cells.
(d) all of the above

Answers

Answer:

All of the above

Explanation:

hope this helps

How many minutes are there in a 40-hour week?

A:2,000

B:2,400

C:1,400

D:1,200

Answers

The answer is B
Explanation:
You multiply 40 by 60 to get 2,400

There will be 2,400 minutes in a week of 40 hours. This can be calculated by the help of unit conversion of time. Thus, the correct option is B.

What is Unit conversion?

Unit conversion is the change of one form of unit to another form of unit of different system such as conversion of units of measurement of weight from gram to kilogram or milligram.

Unit conversion of one unit to another unit is used in order to have accuracy and avoiding the confusion in measurements. For example, the length of pencil is not measured in kilometers rather it is measured in centimeters or inches, which are comparatively smaller than kilometers. In such a case, one has to convert the unit of length from kilometer (km) to centimeter (cm).

The week of 40 hours can be converted into minutes by:

Number of minutes in 1 hour = 60

Therefore, the number of minutes in 40 hours = 60 × 40 = 2,400 minutes

Therefore, the correct option is B.

Learn more about Unit conversion here:

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In regular alcohol consumers, lipids get accumulated in the liver and are stored as small droplets in liver cells and this condition is known as ________.

Answers

Answer:

Fatty Liver

Explanation:

based on the magnetic field line diagrams, what will happen next with these two sets of magnets?

Answers

The answer is A

The magnets in step 1 will repel and the ones in set 2 will attract

Answer: its A

Explanation:

____________ diffuses out of the alveoli and into the pulmonary capillaries, while _______ diffuses out of the pulmonary capillaries and into the alveolar sacs.

Answers

Answer: Oxygen; Carbon Dioxide

Explanation:

Oxygen diffuses out of the alveoli and into the pulmonary capillaries, while carbon-dioxide diffuses out of the pulmonary capillaries and into the alveolar sacs.

What are pulmonary capillaries?

PULMONARY CAPILLARIES: Deoxygenated blood enters into the pulmonary arteries from the right side of the heart and is delivered to the pulmonary capillaries, the smallest blood vessels inside of the lungs, attached to the walls of the alveoli.

Moreover, oxygenated blood then passes from the capillary beds through venules into the pulmonary veins. The pulmonary veins transport it to the left atrium of the heart.

Therefore, the pulmonary arteries are the only arteries that carry deoxygenated blood, and the pulmonary veins are the only veins that carry oxygenated blood.

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whats the difference between saturated and unsaturated fat

Answers

Answer:

The number of double bonds in the fatty acid chain

ILL GIVE U BRAINLIEST
What health-related careers would be of most interest to you? How would learning more about anatomy be helpful for that career?

Answers

A Psychiatrist. A psychiatrist needs to know the human anatomy because they need to be able to prescribe medicine while also knowing the consequences of the patients body. If a psychiatrist was to prescribe a medicine without knowing the human anatomy the psychiatrist would be at risk of injuring the patient. In conclusion learning the human anatomy and mastering it would be helpful for a psychiatrist because it prevents less risk of harming a patient while prescribing a medication.

Which of the following are molecules? (Select all that apply.)
K
MgCl2
H2
Mg
Grade -5-

Answers

Answer:

MgCI2

H2

Explanation:

any combination of elements is a molecule

PLEASE HELP ASAPPP!!


1. List three examples of predator-prey relationships you have observed locally:
(a)
(b)
(c)

Answers

Answer:

(a) frogs-flies

(b) birds-earthworms

(c) snakes-mouses

Answer: Lion-Zebra, Bear-Salmon And Fox- Rabbit

Meaning: Lion eats zebra bears eats salmon and fox eats rabbits

Explanation: There are literally hundreds of examples of predator-prey relations. A few of them are the lion-zebra, bear-salmon, and fox-rabbit. A plant can also be prey. Bears, for example, feed on berries, a rabbit feeds on lettuce, and a grasshopper feeds on leaves.

a bacterium is infected with an experimentally constructed bacteriophage

Answers

The complete question is:

a bacterium is infected with an experimentally constructed bacteriophage composed of the T2 phage protein coat and T4 phage DNA. The new phages produced would have

A) T2 protein and T4 DNA

B) T2 protein and T2 DNA

C) a mixture of DNA and proteins of both phages.

D) T4 protein and T4 DNA

E) T4 protein and T2 DNA

A bacterium infected with an experimentally constructed bacteriophage will give new phages with the virus' DNA and the type of proteins that this DNA encodes.

A bacteriophage is a virus that attaches itself to a bacteria and uses it to replicate itself. Viruses have two main parts, a protein coat and their DNA inside it.

The experimentally constructed bacteriophage has one type of protein that makes the coat, the T2. This type of protein will allow the virus to attach and infect the bacteria. Once the virus attaches itself to the bacteria, it will introduce its DNA, T4 type, and use the bacteria elements to replicate it and create new phages.As a result, the new phages will have T4 DNA, and the proteins that the virus synthesizes will be the same type as the DNA.

In conclusion, The new phages produced would have D) T4 protein and T4 DNA.

Learn more at:

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What transformation takes place wen u light up a match

Answers

Answer:

Transformation that happens when you strike a match is from mechanical energy to thermal energy.

Explanation:

When you strike a match, it moves through the air until it rubs against a surface. The rubbing produces the heat required to light the match. (Thermal energy is heat energy)

Answer:

mechanical energy to thermal energy.

Explanation:

When the match is struck, it burns and the chemical energy in it produces heat energy and light energy

When you strike a match, it moves through the air until it rubs against a surface. The rubbing produces the heat required to light the match. This is a transformation from mechanical energy to thermal (heat) energy.

When looking at the organization of the human body, smaller units lead to progressively larger units. For instance, groups of atoms are called molecules, groups of cells are called _______________, and various organs that work in coordination are called organ systems.

Answers

Answer:

Tissues because tissue is made out of celss

Oxygen is consumed in the mitochondria during oxidative phosphorylation. What is the fate if this oxygen

Answers

Oxygen is consumed in the mitochondria during oxidative phosphorylation. What is the fate of this oxygen? Oxygen can be reduced to water by electron respiratory chain. You just studied 8 terms!

Mendel knew that the variations in the offspring generations resulted from his experiments because he

Answers

Mendel was able to attribute the variation observed in the offspring of his experiment to the controlled fertilization process.

Mendel was able to control pollination and, thus, the fertilization process in the pea plants used for his experiment.

Mendel was able to effectively predict the outcome with self-pollination or cross-pollination with different results coming from each. Thus, he logically concluded that the variation observed in the offspring of his crosses is due to the fact that he controlled the fertilization process.

More on Mendel's experiments can be found here: https://brainly.com/question/3186121?referrer=searchResults

transcription begins at a promoter. what is a promoter?

Answers

Answer:

A site in DNA that recruits the RNA Polymerase

Explanation:

How did mendel prove the law of segregation.

Answers

Mendel proposed the Law of Segregation after observing that pea plants with two different traits produced offspring that all expressed the dominant trait

3) When two atoms bond chemically it is because of the interaction between

A) the nuclei of each atom.

B) the protons in each atoms.

C) all electrons in the atoms.

D) the valence electrons in each atom​

Answers

Answer:

C - All electrons in the atoms

Explanation:

It depends on the bonding for an explanation.

If one atom is a metal and one is a non metal it will be ionic. This is because one atom transfers its electron to the other atom giving them both a charge. They will then be bonded due to opposite forces of attraction.

If both atoms are non metals it will be covalent. Electrons pair together in the center of two atoms that have merged together and they share their electrons.

(Makes more sense with diagrams)

Hope this helps you!

Which of the following are elements? (Select all that apply.)
Na
H2O
C
KCl
Grade -5-

Answers

Answer:

Na & C

Explanation:

Why do the alveoli fill with fluid.

Answers

Answer:

Your lungs contain many small, elastic air sacs called alveoli. With each breath, these air sacs take in oxygen and release carbon dioxide. Normally, this exchange of gases occurs without problems. But sometimes, the alveoli fill with fluid instead of air, preventing oxygen from being absorbed into your bloodstream.

Explanation:

Answer:

The fluid represents the outermost layer of the alveolar surface that is directly exposed to air and thus to the environment. Alveolar fluid prevents desiccation of the epithelial cells and also functions as a physical protection barrier against inhaled particles and irritants.                                        Explanation:     hope this helps

explain how the skin on the human body functions similarly to the cell membrane of a cell.

Answers

Answer:

The skin surrounds the entire body just as the cell membrane surrounds the entire cell. Both the skin and the cell membrane are semi-permeable, meaning that they only allow specific substances to enter or exit the body.

Which statement about biochemical reactions is false?

Answers

So where are the statements

The statement that is false is that they can create new energy during the reaction. The correct option is a.

What is biochemical reaction?

Biochemical reactions are chemical processes that occur in live cells to support life and promote cell growth.

To expedite most biochemical reactions, an enzyme is a type of biological catalyst.

The amount of activation energy required for the reaction to start is decreased by enzymes. Most enzymes are proteins that only interact with one particular chemical, known as their substrate.

The ratio of atoms in the reactants and products must always be balanced.

They have the capacity to store energy as a covalent bond. They have the ability to alter the cell's energy's shape. They follow the laws of physics and chemistry.

Thus, the correct option is a.

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Your question seems incomplete, the missing options are:

a. They can create new energy during the reaction.

b. They must always balance the number of atoms in the reactants

and the products.

c. They can store energy in the form of a covalent bond.

d. They can change the form of energy found in the cell.

e. They obey the rules of chemistry and physics.

what occurs during a point (substitution) mutation?

Answers

Answer:

A point mutation or substitution is a genetic mutation where a single nucleotide base is changed, inserted or deleted from a DNA or RNA sequence of an organism's genome.

Explanation:

Hope this helps!

which farm animal has the largest eyes of any land mammal?

Answers

Answer:

The horse

Explanation:

The horse, being a farm animal, has the largest eyes of any land animal; the eyes of a horse are about 1.34 inches diameter wise.

I hope this helped!! ^v^

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