1.

In a family, father has a blood group 'A' and mother has a blood group 'B', Children show 50 % probability for a blood group "AB" indicate that -

A. Father is heterozygous
B. Mother is heterozygous
C. Either of parent is heterozygous
D. Mother is homozygous
E. cessive
Answer» D. Mother is homozygous


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