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In a species that has two chromosomes, suppose that a male has genotype aa for a...

In a species that has two chromosomes, suppose that a male has genotype aa for a gene on chromosome 1 and genotype bb for a gene on chromosome 2. If a female of this species has genotype AA for the gene on chromosome 1 and genotype BB for the gene on chromosome 2, which of the following represents the possible genotypes in a cell of their offspring?

Aa on chromosome 1, Bb on chromosome 2
aB on chromosome 1, Ab on chromosome 2
AA on chromosome 1, bb on chromosome 2
AB on chromosome 1, ab on chromosome 2
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Answer #1

male - chr1 - aa

chr 2 - bb

female - chr1 - AA

chr2 - BB.

in offspring half chromosome come from mother and half come from father so the genotype of the offspring will be -

Aa on chromosome 1, Bb on chromosome 2.

option A) is correct.

also

aa bb x AA BB

gametes form - ab and AB

F1 generation - AaBb.

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