Question

A man having blood group O marries a woman having blood group B and they have a daughter. What will be the blood group of the daughter ?

Answer 1

Equal probability for either group O or group B

Blood group B has genes = B and O {B is Dominant}

Blood group O has genes = O and O

Blood group AB has genes = B and A {both equally dominant}

Blood group A has genes = A and O

Possible gene pair will be : O and O ; O and B ; O and O ; B and O.

So blood group can be B or O in the ratio 1:1.