What Is the Decline in the Occurrence of Sickle Cell

question 30

Multiple Choice

What is the decline in the occurrence of sickle cell anemia in the American population most likely the result of?

• A) a lower mutation rate in the United States than in Africa
• B) the advantage of both homozygous forms over the heterozygous form
• C) the development of appropriate medical treatment for the sickle cell condition in the United States
• D) a decline in the occurrence of malaria in the United States

---

Definitions:

Assessed Valuation

The value assigned to a property by a government tax assessor for tax purposes.

Tax Rate

The percentage of one's income or the value of a good, service, or asset that is paid as tax to the government.

Market Value

The existing cost at which a service or asset is available for purchase or sale in the market.

Sales Tax

A tax imposed by government on sales of goods and services, typically computed as a percentage of the sale price.