Question

What would be the result if crossing over did not happen during meiosis in
humans?

A. There would be less genetic variation in humans.

B. Parents would be more likely to look like their children.

C. The human population could not reproduce.
D. Children would have more chromosomes.

Answer 1

Answer:

A.There would be less genetic variation in humans

Explanation:

During the process of crossing over chromosomes of a homologous pair exchange equal segments with each other. This results in new combinations of genes in the gametes that are not found in either parent, contributing to genetic diversity. Therefore, if this did not occur there would be less genetic variation in humans

Answer 2

There would be less genetic variation in human, if crossing over did not happen during meiosis in humans. thus option A is correct.

What do you mean by crossing over in genetics?

The crossing over is a process that is essential to human genetic diversity. During the crossing over parts of the homologous chromosomes ( two chromosomes identical by structure, but different in origin, one inherited from the mother and one from the father) randomly exchange parts of their sequences.

If the crossing-over didn't exist, this would greatly decrease the genetic diversity because the chromosomes would always be passed o the next generations unchanged.

Learn more about crossing over here:

https://brainly.com/question/11266495

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