A number of interacting genes produce quantitative inheritance.The transmission of these genes can be seen in the phenotypical pattern of
A) discontinuous distribution of discrete phenotypes.
B) continuous variation in phenotypic expression.
C) strict dominance and recessiveness.
D) a small number of discrete phenotypic classes.
E) only discontinuous distribution of discrete phenotypes and continuous variation in phenotypic expression.

Question

Quizplus · Accepted Answer

Quantitative inheritance means the inheritance of traits that show continuous variation in phenotypic expression, which is a result of the interaction of multiple genes. Therefore, the best choice is B, which describes continuous variation in phenotypic expression. Choices A, C, D, and E do not accurately describe the pattern of inheritance seen in quantitative traits.

A Number of Interacting Genes Produce Quantitative Inheritance