Polygenic traits
A)are discrete.
B)have a continuous range of expression.
C)are controlled by only one genetic locus.
D)include the ABO blood type system and cystic fibrosis.
E)are also called Mendelian traits.

Question

Quizplus · Accepted Answer

Polygenic traits are controlled by multiple genes, leading to a continuous range of expression rather than discrete categories. This contrasts with traits controlled by a single gene, which typically have a limited number of possible phenotypes.

Polygenic Traits