You Are Looking at the Color of Feathers in Ducks

question 56

Multiple Choice

You are looking at the color of feathers in ducks and find that yellow ducks (Y) are dominant to green ducks (y) . However, a second gene, H, controls whether the color will be expressed in the feathers. If the duck is hh, the duck will always be white, because the pigment does not go into feathers. What ratio of phenotypes would you expect following a dihybrid cross?

• A) 15:1
• B) 12:3:1
• C) 9:3:4
• D) 9:6:1
• E) 13:3

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Definitions:

Social Norm Deviance

The act of behaving in ways that are not in alignment with accepted social practices or standards.

Mental Illness

A broad term for a wide range of mental health conditions that affect mood, thinking, and behavior, often requiring diagnosis and treatment by mental health professionals.

Psychopathology

The study of abnormal behavior and psychological dysfunction.

Abnormal Behavior

A pattern of behavioral, emotional, or cognitive functioning that is atypical or significantly deviates from societal norms and may cause distress or impairment in functioning.