1.

Retroviruses are implicated as a cause for cancer in humans because theyA. carry gene for reverse transcriptaseB. may carry cellular protooncogenes in their genomeC. may carry v-oncogenes in their genomeD. carry single stranded RNA as their genetic material

Answer» Correct Answer - B
Retroviruses are implicated as a cause of cancer in humans because they may carry cellular proto-onchogenes in their genome, when these proto-oncogenes gets converted into oncogenes due to some physical, chemical or biological agents they cause cancer.


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