Most traits are a function of the interaction of multiple genes, known as ______.
A) polygenic inheritance
B) genomic imprinting
C) incomplete dominance
D) heterozygous inheritance

Question

Quizplus · Accepted Answer

Polygenic inheritance is when multiple genes contribute to the expression of a single trait. This leads to a continuous variation in the population, as opposed to the discrete variation seen in traits controlled by a single gene. Genomic imprinting refers to the expression of a gene being determined by the parent of origin, incomplete dominance is when a heterozygous individual expresses a phenotype that is intermediate between the two homozygous phenotypes, and heterozygous inheritance is a vague term that is not well-defined in genetics.

Most Traits Are a Function of the Interaction of Multiple