Question

If a male with blood type A, marries a female with blood type B, the first generation child will have

• A. Type B
• B. Type A
• C. Type O
• D. Type AB
• E. All types are possible

Answer 1

Answer: (E)

All types are possible

	A	i
B	AB	Bi
i	Ai	ii

Male with A blood group has genotype Ai

Female with B blood group has genotype Bi

i represents the recessive gene which in homozygous condition (ii) gives O blood group.

On crossing, we can see all four blood types children can be produced.

So, the correct option is 'All types are possible'.