Most human variation is due to _____ traits.
A)single gene
B)complex
C)epistatic
D)nondisjunction
E)incompletely dominant

Question

Quizplus · Accepted Answer

Complex traits are influenced by multiple genes and environmental factors, and therefore account for most human variation. Single gene traits (A) are limited in their variability and only account for a small portion of human variation. Epistatic traits (C) involve the interaction of multiple genes but do not necessarily account for the majority of human variation. Nondisjunction (D) refers to an error in chromosome segregation during cell division and is not a factor in most human variation. Incompletely dominant traits (E) also play a limited role in human variation as they involve the expression of alleles that are not completely dominant over each other.

Most Human Variation Is Due to _____ Traits