Nora's Grandfather Lived to Be 87,and Her Father Is Still

question 122

Multiple Choice

Nora's grandfather lived to be 87,and her father is still alive at the age of 98.Nora concludes that longevity is inherited and anticipates a very long life.Nora should know that __________.

• A) there is no reliable data on the heritability of longevity, so the cumulative effects of random events probably contributed to the long lives of her relatives
• B) the lifespans of fraternal twins are just as similar as the lifespans of identical twins, indicating that longevity is probably not a heritable trait
• C) rather than inheriting longevity directly, people probably inherit risk and protective factors that influence their chances of dying earlier or later
• D) the heritability of longevity is high, ranging from .75 to .95 for age at death, indicating that longevity is directly related to genetic factors

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Definitions:

New Constitution

Refers to the Constitution of the United States, adopted in 1787, which established the country's national government and fundamental laws, and guaranteed certain basic rights for its citizens.

Civil Liberties

Individual rights protected by law from unjust governmental or other interference, including freedom of speech and the right to privacy.

American Revolution

The period (1765-1783) during which the Thirteen Colonies in North America fought and gained independence from Great Britain, leading to the founding of the United States.

David Ramsay

An American physician, historian, and politician who lived in the late 18th and early 19th centuries, known for his contributions to American medical history and history of the American Revolution.