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How do HIV viruses know to target helper T cells?A. The helper T cells attack the virus like they are supposed to, and when they eat the virus, the viral RNA is able to enter the T cell’s nucleus.B. HIV viruses attack the immune system, not helper T cells.C. They absorb small signal molecules the T cells release, and trace them back to the cell.D. The glycoproteins on their membrane identify the T cells.

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The correct answer is D. The glycoprotein on their membrane identify the T cells. Virus recognise cell membrane protein to adhere and infect cells.

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