NTA Abhyas NEET2020BotanyBiological ClassificationPractice
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 RNA - dependent 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
Retroviruses have RNA as the genetic material and hence they exhibit reverse transcription where by DNA is synthesised on RNA template. They have reverse transcriptase as the enzyme.