A crossover has occurred in the bivalent shown here.

What is the outcome of this single crossover? If a second crossover occurs somewhere between A and C, explain which two chromatids would be involved and where the crossover would occur (i.e., between which two genes) to produce each of the following arrangements of alleles along the chromosomes:
A. ABC, AbC, aBc, and abc 

B. Abc, Abc, aBC, and aBC 

C. ABc, Abc, aBC, and abC 

D. ABC, ABC, abc, and abc

Transcribed Image Text:

A B C A BC 2 b 13 a b c 4