Some multifactorial traits are determined by many interacting genes, each of which may have several alleles.If such a trait is measured in a population, what phenotypic pattern is expected?
A)All individuals will have the same phenotype.
B)Two types of individuals will exist, and most will have the dominant phenotype.
C)Different individuals will each have one of a few discrete phenotypes.
D)The population will have continuous variation in phenotypic expression.

Question

Quizplus · Accepted Answer

Multifactorial traits, influenced by multiple genes and their interactions, typically result in a continuous range of phenotypes rather than discrete categories, reflecting the additive effects of many genes.

Some Multifactorial Traits Are Determined by Many Interacting Genes, Each