Which of the following statements 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.
Option A Retroviruses contain RNA as genetic material and this RNA is converted to DNA using enzyme reverse transcriptase.