The distinction between multifactorial and polygenic traits is that
A)polygenic traits are caused by more than one gene,and multifactorial traits are caused by one or more genes as well as environmental influences.
B)multifactorial traits are not genetic,and polygenic traits are genetic.
C)the genetic component can be determined for polygenic traits but not for multifactorial traits.
D)polygenic traits are caused by more than one gene,and multifactorial traits are caused by only one gene.

Question

Quizplus · Accepted Answer

Multifactorial traits are caused by both genetic and environmental influences, while polygenic traits are caused by the contribution of multiple genes. Therefore, option A correctly describes the difference between the two terms. Option B is incorrect because both multifactorial and polygenic traits are genetic in nature. Option C is false since genetic components can be determined for both traits. Option D is incorrect because multifactorial traits can be caused by multiple genes, in addition to environmental factors.

The Distinction Between Multifactorial and Polygenic Traits Is That