Loss-Of-Function Mutations in One Allele Tend to Show _______ Inheritance

Loss-of-function mutations in one allele tend to show _______ inheritance because the normal enzyme activity of one wild-type allele usually _______.

A) dominant; is sufficient to produce the wild-type phenotype
B) dominant; is not sufficient to produce the wild-type phenotype
C) dominant; yields a phenotype between the homozygous wild type and homozygous mutant
D) recessive; is sufficient to produce the wild-type phenotype
E) recessive; is not sufficient to produce the wild-type phenotype