These problems are less common than other causes for heart failure, but it is important to monitor heart function in people who have: 1  Anemia â It is the job of the red blood cells to carry oxygen needed to maintain life in the body's cells.
From Wikipedia, the free encyclopedia. A retrovirus is any virus which copies itself as part of the cell's DNA by reverse transcribing its RNA. Since the cell cannot proofread the step in which RNA is converted back to DNA, errors often go unnoticed.This makes the exact sequence of a retrovirus's RNA change often.rom Wikipedia, the free encyclopedia. A retrovirus is any virus which copies itself as part of the cell's DNA by reverse transcribing its RNA. Since the cell cannot proofread the step in which RNA is converted back to DNA, errors often go unnoticed. This makes the exact sequence of a retrovirus's RNA change often.
Noun. 1. retrovirus-any of a group of viruses that contain two single-strand linear RNA molecules per virion and reverse transcriptase (RNA to DNA); the virus transcribes its RNA into a cDNA provirus that is then incorporated into the host cell. animal virus-an animal pathogen that is a virus.etÂ·roÂ·viÂ·rus. Any of a group of viruses containing RNA in which the RNA can convert to DNA inside a cell. Some retroviruses cause cancer in humans. The virus that causes AIDS is a retrovirus.