The figure (Figure 1) shows original chromosomes at the top and paired chromosom
ID: 316197 • Letter: T
Question
The figure (Figure 1) shows original chromosomes at the top and paired chromosomes undergoing crossing over at the bottom. You will be determining how the chromosomes connect after the crossover event has finished. Be sure to begin with the left end of each chromosome.
a) Select the correct combination describing the left end (unprimed number) and right end (primed number) of the following chromosome found in the gametes.
b) Select the correct combination describing the left end and right end of the following chromosome found in the gametes.
3 Inversion Pairing Paracentric inversion heterozygote A B C D E A B C D E Inversion loop, including crossoverExplanation / Answer
Answer:
(1-1’). --A----B---C---D---E---
(2-4). –A---B---C---d---a----
(3-3’). ---a---d---c---b---e—
(2’-4’). ---E---D---c—b—e—
a). 1-1’
b). 2-4
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