NEET Biology question

Three children in a family have blood types O, AB and B respectively. What are the genotypes of their parents?

(A) and Correct
(B) and
(C) and
(D) and

Answer: (A)

Solution

For one couple to produce children of types O, AB and B, both parents must carry a hidden allele (to jointly produce an O child) while one parent carries and the other carries (to jointly produce an AB child, and the

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Question ID VK-119618