Which of the Following Statements About the CCR5 and the CXCR4

question 2

Multiple Choice

Which of the following statements about the CCR5 and the CXCR4 receptors used by HIV to recognize and enter macrophages is false?

• A)The smallpox virus and HIV share the co-receptor CCR5.
• B)Cytokines inhibit HIV infection by binding to CCR5 and CXCR4.
• C)Only HIV with mutated gp120 glycoproteins can bind to CXCR4 receptors on T cells.
• D)Individuals with few CXCR4 receptors should be more resistant to HIV infection.
• E)Individuals with a genetic resistance to smallpox may be more susceptibility to HIV infection.

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