Multiple choice

How many external spikes are present in the enveloped structure of the HIV virion?

  1. 72

  2. 71

  3. 70

  4. 69

  5. 68
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A Correct answer
Explanation

HIV-1 virus is made up of protein envelope and two copies of single stranded RNA of the genome. The envelope contains 72 external spikes. This spike is made up from the glycoproteins GP120 and GP41. Here GP stands for glycoprotein and the number refers the mass of protein. GP120 is present in external spike and GP41 is in transmembrane.

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