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In human, attached earlobes are a domin...

In human, attached earlobes are a dominant feature over free earlobes while hypertrichosis (Y-linked) feature. A man with attached earlobed and extensive hair on pinna married a woman having free earlobes. The couple had one son with free earlobes and hairy pinna and two daughters with attached earlobes. One of the daughters with attached earlobes. One of he daughters married a man with free earlobes and sparse hair on pinna. They had two sons. What would be the characteristics of their ponnae ?

A

There would be equal chances for both having free or attached earlobes and sparse hair on pinnae.

B

They would have hairy pinnae and there would be 1 in 8 chance that both will have attached earlobes.

C

There is an equal chance for the two to have either hairy pinnae or sparse hair on pinnae.

D

Both will have free earlobes and extensive hair on pinnae.

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