Question

a man with blood group A marries a woman with blood group O and their daughter has blood group O is this information enough to tell you which of trade blood group A or is dominant why or why not​

Answer 1

Explanation:

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ANSWER :

A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits - blood group A or O - is dominant? Why or why not?

The information is not enough to decide which blood group is dominant.

But universally , blood group A is dominant whereas blood group O is recessive.case 1: For an A group father it may be homozygous (AA) or heterozygous(A0) as pairs.So as A is dominant and an O group mother, the O group is recessive, then the daughter may have either group O Or A.

If A from father crosses with O of mother then blood group of daughter =A(dominant)

case 2:But if O from father crosses with O of mother then blood group of Daughter=) (as recessivpressed in homozygous condition.

Answer 2

this indicates the man is heterozygous then only possibility of progen will happen