A Condition in Which One Gene Pair Masks the Expression

question 51

Multiple Choice

A condition in which one gene pair masks the expression of a nonallelic gene pair is called ________.

• A) codominance
• B) epistasis
• C) dominance
• D) recessiveness
• E) additive alleles

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Definitions:

Leptin

A hormone produced mainly by fat cells that helps to regulate energy balance by inhibiting hunger, thereby influencing appetite and body weight.

Anorexia Nervosa

An eating disorder characterized by an overwhelming, irrational fear of gaining weight or becoming fat, compulsive dieting to the point of self-starvation, and excessive weight loss.

Bulimia

An eating disorder characterized by episodes of binge eating followed by methods to prevent weight gain, such as vomiting, fasting, or excessive exercise.

Emaciated

A physical condition characterized by extreme weight loss and muscle wasting, often due to severe malnutrition or disease.