Answer:
Step-by-step explanation:
Woman with blood group A marries a man with blood group O.
The woman could be AA or AOwhile the man is OO
This, we have this if the woman is AA
A. A
O. AO. AO
O. AO. AO
If the woman is AO, we have
A. O
O. AO. OO
O. AO. OO
I. they produce children with blood group A only if the woman has the AA genotype for the blood group A
ii. they produce children, some with O blood group and some with A blood group if the woman has the AO genotype for the blood group A.