Q.

HIV often changes its shape due to the presence of an enzyme called

A. Reverse Transcriptase
B. Enterokinase
C. Nucleotidase
D. Nucleoditase
Answer» A. Reverse Transcriptase
Explanation: Use of the reverse transcriptase enzyme is a unique characteristic of retroviruses such as HIV. After the virus releases its genetic material into a host cell, reverse transcriptase converts the viral RNA into a complementary piece of DNA. This process is known as 'reverse transcription'.
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