Q. Which of the following statement is not true for retroviruses?
A) DNA is not present at any stage in the life cycle of retroviruses
B) Retroviruses carry gene for RNA dependent DNA polymerase
C) The genetic material in mature retroviruses is RNA
D) Retroviruses are causative agents for certain kinds of cancer in man
Explanation
Retroviruses are so named because they contain enzyme reverse transcriptase or RNA dependent DNA polymerase. The genetic material of these viruses is RNA, $e.g.,$ Rous sarcoma virus.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.