The Multiple Effects of a Single Gene on the Phenotype

question 33

Multiple Choice

The multiple effects of a single gene on the phenotype of an organism is called ________.

• A) epistasis
• B) penetrance
• C) expressivity
• D) overdominance
• E) pleiotropy

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Definitions:

Dred Scott V. Sanford

An 1857 U.S. Supreme Court decision that ruled African Americans were not U.S. citizens and that Congress had no authority to prohibit slavery in federal territories, exacerbating sectional tensions that led to the Civil War.

Republican Plan

A strategy or proposal put forward by members of the Republican Party (USA) aimed at addressing political, economic, or social issues.

Supreme Court Decision

A ruling made by the Supreme Court of the United States, serving as the final interpretation of constitutional and legal issues.