What Is the Advantage That Heterozygotes of the Sickle Cell

question 43

Multiple Choice

What is the advantage that heterozygotes of the sickle cell gene have over people who are not carriers?

• A) Carriers of the sickle cell allele are resistant to developing Huntington disease.
• B) Carriers of the sickle cell allele are resistant to malaria.
• C) Carriers of the sickle cell allele are resistant to Tay-Sachs.
• D) Carriers are more likely to live longer than non-carriers.
• E) Carriers of the sickle cell allele are resistant to cystic fibrosis.

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Definitions:

Demographer

A social scientist who studies population dynamics, including birth rates, mortality rates, and migration patterns.

Net Migration Rate

The difference between the number of immigrants and the number of emigrants throughout the year, per 1,000 inhabitants in a given country.

Emigrants

Individuals who leave their own country to settle permanently in another.

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