Biology · Biodiversity | Variety of Life

Human immunodeficiency virus (HIV) is a retrovirus, and it contains integrase, protease, and reverse transcriptase enzymes. Integrase helps integrate viral DNA into the host cell genome, protease cleaves viral polyproteins to produce functional viral proteins, and reverse transcriptase synthesizes DNA from the viral RNA genome.

Hepatitis A virus does not contain these enzymes. It is an RNA virus that causes hepatitis A, a liver infection.

Herpes virus donot possess these specific enzymes. Herpes viruses are DNA viruses that cause diseases such as cold sores, genital herpes, and chickenpox.

Influenza viruses donot contain integrase, protease, or reverse transcriptase. Influenza viruses are segmented RNA viruses that cause the flu.

Human immunodeficiency virus (HIV) is a retrovirus, and it contains integrase, protease, and reverse transcriptase enzymes. Integrase helps integrate viral DNA into the host cell genome, protease cleaves viral polyproteins to produce functional viral proteins, and reverse transcriptase synthesizes DNA from the viral RNA genome.