Receptor proteins present on T helper lymphocytes where an HIV particle binds:
Correct answer: A. CD4
- A. CD4
- B. CD8
- C. CD2
- D. CD1
Explanation
CD means cluster of differentiation. There are many types of CD proteins, such as CD4 and CD8, attached to the cell membranes of different types of T cells. HIV attaches to CD4, which is part of the T helper cell membrane.
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