A man with blood type A and a woman with blood type B can have a baby with blood type O blood.
A) True, because A and B are the dominant blood types and both individuals could carry a type O allele.
B) False, the child must have type AB blood.
C) True, because A and B are codominant.
D) False, because Type A and B are dominant blood types and these individuals cannot have an offspring with the recessive blood type.
E) True, because only 1 O allele is needed.

Question

Quizplus · Accepted Answer

Both individuals could be heterozygous, carrying an O allele (genotypes AO and BO), allowing them to have a child with OO genotype, resulting in blood type O.

A Man with Blood Type a and a Woman with Blood