MDCAT Biology MCQ #26

During HIV entry into a T-helper cell, which viral component is primarily responsible for the initial adsorption to the CD4 receptor?

MDCAT Biology MCQ #26

  1. Question 1

    Q1. During HIV entry into a T-helper cell, which viral component is primarily responsible for the initial adsorption to the CD4 receptor?

    • A) gp41
    • B) p24
    • C) gp120
    • D) Reverse transcriptase

    Answer: gp120

    Explanation: The gp120 spike specifically binds to the CD4 receptor; gp41 fails because it mediates the fusion of the viral envelope.