A Recessive Allele __________

question 73

Multiple Choice

A recessive allele __________.

• A) needs to be present on only one chromosome to be expressed
• B) is never expressed
• C) needs to be present on both chromosomes to be expressed
• D) occurs as a regulatory gene only

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Definitions:

African Americans

A demographic group in the United States with ancestry traced to the black racial groups of Africa.

Middle and Upper Classes

Social groups categorized by higher levels of wealth, income, education, or occupational prestige compared to the working or lower classes.

Gender Role

Societal norms dictating the behaviors, tasks, and responsibilities that are considered appropriate for men and women.

Mortality Rate

A measure of the number of deaths in a particular population, scaled to the size of that population, per unit of time.