In the 19 fifties, you could not have pickeda mor obscure topic to study than a cancer virus. Viruss at that were not considered very important in a chance of researchr they had always been a side show for chance research. Howard Temman was hooked rous sarcoma was a weird, enthralling puzzle. He began to notice all kinds of anomalies. The central dogma held that genetic information only moved in one direction. But raussar koma seemed like it was conquering the cells it was infecting and inserting its own genetic information into the dionae of its host.