Question

which of the statements describes a polygenic trait?
o a trait that is influenced by a single, dominant allele of a single gene
o a trait that is influenced by two or more genes
o a trait that is influenced entirely by environmental factors
o a trait that is influenced by both alleles of a single gene

Explanation:

A polygenic trait is defined as a trait influenced by two or more genes. Traits influenced by a single gene (either dominant allele or both alleles) are monogenic. Traits influenced entirely by environmental factors are not related to polygenic inheritance.

Answer:

a trait that is influenced by two or more genes