Which virus causes cervical and liver cancer?

Which virus causes cervical and liver cancer? Correct Answer Oncovirus

The DNA content of oncovirus causes cancer by inhibiting the activity of Ras and p53. The first proto-oncogene to be shown to turn into an oncogene is called Ras. Ras encodes an intracellular signal-transduction protein. In other words, Ras is one of the on and off switches in a major pathway that eventually leads to cell growth. Oncovirus inhibits this activity due to which there is uncontrollable growth of cells which in turn causes cervical of liver cancer. 
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Related Questions

Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

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Conclusions :
I. The same diet as in Hawaii should be propagated in Japan also.
II. Bowel cancer is less severe than stomach cancer.
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