NEET2004BotanyBiological ClassificationActual
Which of the following statements is not true for retroviruses?
Options
- ADNA is not present at any stage in the life cycle of retroviruses
- BRetroviruses carry gene for RNAdependent DNA polymerase
- CThe genetic material in mature retroviruses is RNA
- DRetroviruses are causative agents for certain kinds of cancer in man.
Correct answer
A. DNA is not present at any stage in the life cycle of retroviruses
Step-by-step solution
Retrovirus once it has infected a cell, it converts its RNA into DNA by reverse transcription. This viral DNA is then inserted into the DNA of the host cell where it starts replicating. For e.g., Human Immunodeficiency Virus (HIV). Related Theory Difference Between Retrovirus and Virus array |l|l| Retrovirus & Virus array l These have RNA as genetic material. array & array l These have RNA and DNA as the genetic material. array array l They undergo reverse transcription to convert the RNA into DNA. array & array l