In Your Textbook, the Lower Frequency of Sickle-Cell Anemia Among

question 11

Multiple Choice

In your textbook, the lower frequency of sickle-cell anemia among present day American blacks as compared to West African blacks is attributed to:

• A) genetic drift.
• B) gene flow.
• C) new mutations.
• D) none of the above

---

Definitions:

Price Ceiling

A government-imposed limit on the price charged for a product, intended to prevent the price from rising to a certain level.

Maximum Price

A price ceiling set by a government or regulatory body, above which a particular good or service cannot be sold.

Government

The governing body of a nation, state, or community which is responsible for making and enforcing laws and managing public resources and affairs.

Rationing Mechanism

a system or policy by which scarce goods or services are distributed.