Question

A man with type A blood marries a woman with type B. Their offspring all have type AB blood. The pattern of inheritance is called

A) codominance.
B) sex-linkage.
C) crossing over.
D) incomplete dominance.

Answer 1

the answer is: a) codominance

Answer 2

A pattern of inheritance is called codominance ( answer A)

Explanation

Co dominance is form of dominance whereby the alleles of gene pair is heterozygote and are fully expressed.

This results in offspring with a phenotype that is neither dominant nor recessive.

A person with AB has a co dominance inheritance since both A allele and B allele are equally expressed.