A) The genetic material in mature retroviruses is RNA
B) These viruses carry gene for RNA dependent DNA polymerase
C) They are causative agents for certain kinds of cancer in human
D) DNA is not found in any stage in the life cycle of retroviruses
Correct Answer: D
Solution :
Retroviruses are so named because they contain enzyme, reverse transcriptase or RNA dependent DNA polymerase RNA is genetic material in these viruses, e.g.. Rous sarcoma virus.
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