Question

Reverse transcriptase occurs in virus

• A. HIV
• B. Influenza virus
• C. Vaccinia virus
• D. All the above

Answer 1

The correct option is A HIV

HIV (Human Immunodeficiency Virus) is a retrovirus with a viral envelope, matrix proteins and core. The viral core consists of two single strands of RNA. Retroviruses containing RNA genome have reverse transcriptase enzyme that synthesizes a DNA copy (cDNA) of viral RNA. This cDNA can be introduced in the hosts' genome and allowed to replicate to form viral proteins. Influenza and vaccinia viruses are not retroviruses.

Thus, the correct answer is option 'HIV'.