Question

A man with type A blood marries a woman with type B blood. Their child has type O blood. What is the genotype of the woman

Answer 1

The genotypes of the two parents are AO and BO. Blood types A and B are dominant over blood type O,

Step-by-step explanation:

An offspring inherits their genotype (genetic makeup) from their parents with each parent providing one allele for a given trait. An offspring need only inherit one dominant allele to have the phenotype (observable physical characteristic) of that trait and must inherit a recessive allele from each parent in order to have that phenotype. For example, brown hair is a dominant trait and only one parent must provide that allele for hair color in order for their offspring to have brown hair. In order for the recessive trait of blonde hair to be the phenotype of the offspring, each parent must provide the blonde hair allele.