A gene that controls seed coat color in peas also determines the susceptibility of these peas to a particular disease. This situation is referred to as

A) variegation.
B) polygenic inheritance.
C) codominance.
D) pleiotropy.
E) incomplete dominance.

Pleiotropy

A genetic phenomenon where a single gene influences multiple phenotypic traits in an organism.

Seed Coat Color

The external color of a seed's protective outer layer, which can vary based on species and genetic factors.

Susceptibility

The likelihood or predisposition of an individual or population to be affected by a disease or condition based on genetic or environmental factors.