galacticsoul galacticsoul
  • 24-01-2017
  • Biology
contestada

which statement is true of crossing over

A- what occurs during prophase of mitosis

B- it allows for genetic variation

C-it occurs only in animals

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Nanamoney
Nanamoney Nanamoney
  • 24-01-2017
I am like 100% that the answer is A.
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rach1300
rach1300 rach1300
  • 24-01-2017
B as the chromatids cross over and switch their alleles which creates a different variation within the genes
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