Which Statement About the Human Immunodeficiency Virus (HIV)is True

question 20

Multiple Choice

Which statement about the human immunodeficiency virus (HIV) is true?

• A) About 30 percent of all new HIV infections affect women.
• B) In South Africa, 30 percent of all pregnant women are HIV-positive.
• C) About 30 percent of new HIV infections occur in developing countries.
• D) Untreated HIV-infected mothers pass the virus to the fetus 30 percent of the time.

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Definitions:

Genetic Divergence

The process by which two or more populations of an ancestral species accumulate independent genetic changes (mutations) over time, often leading to the formation of new species.

Geographic Distance

The physical space between two points on the Earth's surface, often influencing ecological and evolutionary processes.

Subdivision

The act of dividing a larger area, category, or organization into smaller, more manageable parts.

Hardy-Weinberg Equation

A fundamental principle in genetics that provides a mathematical relationship to predict the genetic variation and allele frequencies in a population under certain conditions, showing that allele frequencies in a sexually reproducing population remain constant from one generation to the next in the absence of other evolutionary influences.