Study Material
Shop Books
A man with blood group A marries a woman with blood group O and B 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 given information is not sufficient to tell which blood group is dominant B or O. For a daughter to have blood group O her mother should be homozygous
OO and father should be heterozygous AO.