Question

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How is it possible for a child to have a blood group O if the parents have blood groups A and B? Show with the help of a cross.
Class 12 CBSE

Answer 1

Explanation:

if parents are heterozyogous for character of a and b then one proportion of child have recessive character from both sides as aresult o blood group will be formed

Answer 2

If the Mother's blood type is B, and the father's blood type is O, then their child must be either B or O. For instance, if both mother and alleged father have type A blood, then the child can only have A or O blood. ... However, in 1 out of 4 instances, both parents will contribute their recessive O gene to their child.

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