In Simple Inheritance

Multiple Choice

In simple inheritance,

A) phenotypic characteristics are determined by a single pair of alleles.
B) phenotypic characteristics are determined by multiple alleles.
C) phenotypic characteristics are determined by the action of two genes.
D) phenotypic characteristics are controlled by regulator genes on a chromosome other than the one that has the structural genes.
E) phenotypic characteristics are determined by the genes on the Y chromosome.