Viruses
Which of the following oncogenic viruses was first detected?

Human T cell leukaemia virus
Rous sarcoma virus.
Epstein-Barr virus
Herpes simplex virus type 2

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Viruses
The oncogene theory refers to

how chemicals inactivate viruses when applied
how viruses replicate in host cells
how viruses transform normal cells into tumor cells
none of these

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