The HIV Virion Attaches to ________ on the Surface of Lymphocytes

Question

The HIV virion attaches to ________ on the surface of lymphocytes.
A) IgG
B) MHC II
C) IL-2R
D) CD4
E) CD3

Accepted Answer

The HIV virion attaches to the CD4 receptor on the surface of lymphocytes, which is a protein found on helper T cells, monocytes, macrophages, and dendritic cells. This binding is essential for the virus to enter and infect the host cells. Other choices (A, B, C, and E) are not involved in the attachment of HIV to the lymphocytes.