Question

10.(a) why is human abo blood group gene considered a good example of multiple alleles? (b) work out a cross up to f1 generation only, between a mother with a blood group a (homozygous) and the father with blood group b (homozygous). Explain the pattern of inheritance exhibited.

Answer 1

Answer:

human blood has 3 alleles

1.IA

2.1B

3.O

if we make find their permutation and combination in punnet square,we will get AB blood group as one of the product where IA AND IB alleles are equally dominant and some with IA /IB with O leads to A or B blood group ,that's why

Explanation:

IA. I IB .

IA. IA.IA. I IA.IB

IB. IA.IB. I IB.IB leading BLOOD GRP RATIO A:B:AB=1:1:2