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Ludmilka [50]
3 years ago
9

How does crossing-over result in genetic recombination?

Biology
1 answer:
dolphi86 [110]3 years ago
7 0

Answer:

D

Explanation:

crossing over is where the homologous chromosomes exchange their genetic material through synapse

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Would the left or right ventricles of the pig heart have more cardiac muscle? explain.
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I am pretty sure a pigs heart has the same structure as a human heart so in saying this the if i remove correctly the right side has more muscle as it has to provide blood to most of the body not including the lungs
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3 years ago
Which prediction will most likely describe how friction will affect her findings? The distance for Trial 3 will be greater than
Juliette [100K]

The complete question is :

Charlie is investigating friction. She will use the same amount of force to push two wooden balls across two level surfaces. Then she will record her results in the table below.

Which prediction will most likely describe how friction will affect her findings?

Answer:

The distance for Trial 3 will be greater than the distance for Trial 4 because the difference in surface roughness will affect friction.

Explanation:

The frictional force depends greatly on the roughness of the body surfaces. It acts opposite to the direction of motion when two body surfaces have a relative motion between them.

In the context, equal mount of force is applied to push the wooden balls. So the net force which acts on the balls are :

F' = F - f

Here, F = the force applied

         f = force of friction

And f = μ.N (N = reaction force)

Here μ is the coefficient of friction that depends on the surface roughness. The frictional force will be less when the surfaces are smooth. Thus for the trails 3 and trial 4, the distance for trail 3 would be greater than trail 4 as the surface is polished and would offer less friction.

8 0
2 years ago
How can humans have a positive impact on air quality?
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3 years ago
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What is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype?
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Https://www.coursehero.com/file/p1rptmb/28-Based-on-the-information-you-discovered-in-Problem-27-answer-the-following-A/
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Imagine that a rancher has a herd of cattle with brown hides and short horns. All of his cattle are also relatively short in sta
dmitriy555 [2]

Answer:

The correct answer would be option D.

Explanation:

True breeding is a breeding procedure in which the parents would always produce their progeny with the same phenotype characters as the parents carry. This means for every trait these parents are homozygous so their offspring must show a similar phenotype.

In this case, all cattle are true-breeding which means they homozygous alleles show the progeny will also show similar traits which are short stature with brown hides and short horns.

Thus, the correct answer is option D.

3 0
3 years ago
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