NEET BIOLOGY

Detailed explanation-1: -Definition. A retrovirus is a virus that uses RNA as its genomic material. Upon infection with a retrovirus, a cell converts the retroviral RNA into DNA, which in turn is inserted into the DNA of the host cell. The cell then produces more retroviruses, which infect other cells.

Detailed explanation-2: -A type of virus that has RNA instead of DNA as its genetic material. It uses an enzyme called reverse transcriptase to become part of the host cells’ DNA. This allows many copies of the virus to be made in the host cells.

Detailed explanation-3: -1.1. RNA Viruses. Human diseases causing RNA viruses include Orthomyxoviruses, Hepatitis C Virus (HCV), Ebola disease, SARS, influenza, polio measles and retrovirus including adult Human T-cell lymphotropic virus type 1 (HTLV-1) and human immunodeficiency virus (HIV).

Detailed explanation-4: -A retrovirus is a type of RNA virus. RNA viruses have genes encoded in RNA instead of DNA. Like other viruses, retroviruses need to use the cellular machinery of the organisms they infect to make copies of themselves. Infection by a retrovirus, however, requires an additional step.

Detailed explanation-5: -1) RNA acts as a genetic material as well as a catalyst. 2) RNA is more stable than DNA.