Question

which of the following describes the ability of a single gene to have multiple phenotypic effects?
multiple alleles
incomplete dominance
epistasis
pleiotropy

Explanation:

• Multiple alleles: Refers to a gene having more than two alleles in a population, not a single gene having multiple phenotypic effects.
• Incomplete dominance: Occurs when the heterozygous phenotype is intermediate between the two homozygous phenotypes.
• Epistasis: When one gene masks or modifies the expression of another gene.
• Pleiotropy: Defined as a single gene having multiple phenotypic effects.

Answer:

pleiotropy