Q.

A man of blood group A, marries a woman of blood group B and both of them are heterozygous for blood groups. The chances of their first child having blood group AB will be

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a

75%

b

25%

c

50%

d

100%

answer is A.

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Detailed Solution

The chances of the child to have blood group AB will be 25%.

Mother- IBi
Father- IAi
Children- IAi or IBi or IAIB or ii.

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