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Given ahead is a pedigree chart of a fam...

Given ahead is a pedigree chart of a family with five children . It shows the Inheritance of attached ear-lobes as opposed to the free ones. Which one is a following conclusions drawn is correct ?

A

The trait is Y - linked

B

The parents are heterozygous

C

The parents are homozygous recessive

D

The parents are homozygous dominant

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The correct Answer is:
B
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