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What Is Dihybrid Cross?

In the above ...

Question

In the above cross, what is the allelic composition of the female gamete?

A

(ab)

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B

(aB)

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C

(Ab)

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D

(AB)

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Solution

The correct option is B
(aB)

The male parent in this case is double heterozygous like the F₁ hybrid. The female parent is double homozygous with genotype aaBB. It can hence, produce only one type of gamete, which is (aB).

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