In quantitative genetic terms, a phenotypic value can be expressed as
A) dominant or recessive.
B) epistasis and pleiotropy.
C) genotypic value and environmental deviation.
D) selection differential and selection response.

Question

Quizplus · Accepted Answer

A phenotypic value is a reflection of both the genetic and environmental factors that contribute to a phenotype. The genotypic value represents the genetic contribution, while the environmental deviation represents the non-genetic contribution. Therefore, choice C is the best answer, as it specifically addresses the two components that make up a phenotypic value. Choices A, B, and D are all terms related to classical Mendelian genetics, and do not directly address the concept of phenotypic value.

In Quantitative Genetic Terms, a Phenotypic Value Can Be Expressed