Q.

An eazyme produced by HIV that allows the integration of HIV DNA into the host cell's DNA is

A. Ligase
B. Integrase
C. Helicase
D. DNA gyrase
Answer» B. Integrase
Explanation: HIV's enzyme for inserting the DNA version of its genome into the host cell DNA is called its "integrase". HIV-1 integrase catalyzes the "cut-and-paste" action of clipping the host DNA and joining the proyiral genome to the clipped ends. It is also produced by viruses containing double-stranded DNAs for the same purpose.
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