Epistasis and Pleitropy

Epistasis is the interaction between_____________ genes.

• 2

• 4

• 3

• 16

Which best describes epistasis?

• An allele that changes the genotype of another allele

• A gene that changes the genotype of another gene

• An allele that controls or masks the expression of another allele

• A gene that controls or masks the expression of another gene

This is when multiple genes code for a single trait

• Polygenic

• Pleiotropy

• Linked genes

• Codominant genes

Which of the following inheritance patterns explains how a particular version of a regulatory gene can activate or deactivate a gene that controls a particular trait?

• codominance

• pleiotropy

• epistasis

• incomplete dominance

Labrador retriever's fur color is an example of epistasis. In this case the E gene controls the expression of the B gene. It a puppy was born with the genotype eeBB its fur color would be ________ and if it was born with the genotype EEbb it would be __________

• yellow, yellow

• yellow, black

• chocolate, black

• yellow, chocolate

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2