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Genes A and B are necessary for normal h...

Genes A and B are necessary for normal hearing. A deaf man marries a deaf woman and all their children have normal hearing. The genotype of the parents are

A

`ppqq xxppQq`

B

`ppqqxxPPqq`

C

`"ppQQ"xx"ppQq"`

D

`PPqqxx"ppQQ"`

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The correct Answer is:
D
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