Question

With regard to the ABO blood typing system, if a man who has type B blood and a woman who has type O blood were to have children, what blood types could the children have?

• A. A or O
• B. B or O
• C. AB or O
• D. A, B, AB or O

Answer 1

Answer: (B)

B or O

If the man have the blood group B, then the genotype of the man is I${}^B$I${}^O$. The gametes formed will beI${}^B$ and I${}^O$. The woman is having the blood group O, the genotype will be I${}^O$I${}^O$. The gametes formed will beI${}^O$ and I${}^O$. Thus, the child will have the blood group B or O.

Thus, the correct answer is option B.