Question

4. Hitchhiker's thumb (H) is dominant to no hitchhiker's thumb (h). A woman who does not have hitchhiker's thumb marries a man who is heterozygous for hitchhiker's thumb. What is the probable genotypic ratio of their children? (SC.912.L.16.1)

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1 point
0% Hh: 100% hh
50% Hh: 50% hh
75% Hh: 25% hh
100% Hh: 0% hh

Answer 1

50% Hh : 50% hh

Explanation: Man is Hh, woman is hh. Gametes: man H or h, woman h. Offspring genotypes: Hh and hh in a 1:1 ratio.