When a trait is polygenic,but has a small number of discrete classes,it is said to be an _____ trait.
A)oncogenic
B)threshold
C)meristic
D)continuous
E)qualitative

Question

Quizplus · Accepted Answer

A threshold trait is one that is controlled by multiple genes but only has a few distinct phenotypic classes. These classes are determined by exceeding a certain threshold of genetic contribution, rather than by a continuum of variation.

When a Trait Is Polygenic,but Has a Small Number of Discrete