In Domestic Chickens, Some Males Display a Plumage Pattern Called

question 15

Multiple Choice

In domestic chickens, some males display a plumage pattern called cock feathering. Other males and all females display a pattern called hen feathering. Cock feathering is an autosomal recessive trait that is exhibited in males only.
-What type of inheritance is exhibited by this trait?

• A) sex-linked
• B) sex-limited
• C) sex-influenced
• D) autosomal recessive
• E) autosomal dominant

---

Definitions:

Human Genome

Describes the complete set of nucleic acid sequences for humans, encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria.

Genes

Units of heredity made up of DNA that determine characteristics of living organisms.

Nature-Nurture Issue

A debate concerning the relative importance of an individual's innate qualities ("nature") versus personal experiences ("nurture") in determining or causing differences in physical and behavioral traits.

Psychological Traits

Enduring characteristics or behaviors that define an individual's personality.