Which of the following statements about polygenic traits is FALSE?
A) Skin color is a polygenic trait.
B) One example of a polygenic trait is obesity in humans.
C) Polygenic traits typically have a bell-shaped distribution pattern.
D) Cleft palate is not a polygenic trait because an individual is either affected or unaffected.
E) The genes controlling some polygenic traits are affected by the environment.

Question

Quizplus · Accepted Answer

Cleft palate is a complex trait with both genetic and environmental components, but it is not considered a polygenic trait. This is because it is determined by a single gene or a small number of genes, rather than multiple genes with additive effects.

Which of the Following Statements About Polygenic Traits Is FALSE