Most behavioural and psychological characteristics follow a(n) ________ pattern of genetic inheritance.
A)dominant-recessive
B)incomplete dominance
C)sex-linked
D)polygenic

Question

Quizplus · Accepted Answer

Most behavioural and psychological characteristics are influenced by multiple genes, which is known as polygenic inheritance. This means that the expression of the trait is not controlled by a single gene with dominant or recessive alleles, nor is it influenced by a single gene on a sex chromosome. Incomplete dominance and sex-linked inheritance involve the expression of traits that are controlled by genes on a single chromosome or gene with a dominant or recessive allele. Therefore, the best choice is D) polygenic.

Most Behavioural and Psychological Characteristics Follow A(n) ________ Pattern of Genetic