In an Experiment, It Was Found That Newborn Rats Who

question 541

Multiple Choice

In an experiment, it was found that newborn rats who were genetically predisposed to be skittish, nervous, and high-strung would develop into calm, exploratory, and stress-resistant adult rats when raised by genetically unrelated, attentive mothers. Although the rats' DNA did not change, the chemicals that controlled their gene expression did change, a phenomenon called:

• A) epigenetic change.
• B) allele variation.
• C) recessive gene mutation.
• D) dominant gene mutation.

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Definitions:

Accumulated Other Comprehensive Income

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Common Stock

Equity ownership in a corporation, giving holders voting rights and a share in the company's profits through dividends.

Retained Earnings

Profits that a company has earned to date, less any dividends or other distributions paid to investors.