If a combination of two or more genes is required to produce a specific trait, it is called a(n) ________.
A) overdominance
B) simple mendelian trait
C) sex-influenced trait
D) sex-linked trait
E) gene interaction

Question

Quizplus · Accepted Answer

If a specific trait requires the interaction of multiple genes, it is known as gene interaction. This is the definition that best matches the question. Overdominance refers to a situation in which a heterozygote has a higher fitness than either homozygote (which is not necessarily the case for a trait requiring multiple genes). A simple Mendelian trait refers to a trait that is controlled by a single gene (not multiple genes). Sex-influenced and sex-linked traits are specific types of traits related to whether they are influenced by the sex of the individual or located on sex chromosomes. Neither term necessarily implies that multiple genes are involved.

If a Combination of Two or More Genes Is Required