Epistasis Is

question 30

Multiple Choice

Epistasis is .

• A) Another term for over dominance
• B) When one gene can mask the expression of a second gene
• C) A trait that is only expressed in one sex of the species
• D) When two dominant alleles can be expressed in the same individual
• E) None of the answers are correct

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Definitions:

Norepinephrine

A neurotransmitter and hormone involved in arousal, attention, and stress response, as well as regulating mood.

Monozygotic Twins

Identical twins that result from one zygote splitting and developing into two separate embryos, sharing identical genetic material.

Schizophrenia

A chronic mental disorder characterized by delusions, hallucinations, disorganized speech or behavior, and impaired cognitive ability.

Discordant

Describes elements or things that are in disagreement or not in harmony.