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otez555 [7]
4 years ago
9

What effects does crossing over have on a chromosome?

Biology
2 answers:
Zarrin [17]4 years ago
8 0

Answer:

d

Explanation:

because

FinnZ [79.3K]4 years ago
7 0

Answer: crossing over allows for genetic variation

Explanation:

crossing over is the exchange of genes between two chromosomes which ends up resulting in non-identical chromatids that comprise the genetic material of gametes (sperm and eggs).

Basically crossing over makes the chromatids that are held together by a centromere, no longer identical to eachother which creates genetic variation.

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