In human beings,retroviruses are considered a | vedclass

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(A) Retroviruses are known to cause cancer because they possess viral oncogenes $(v-onc)$.These viral oncogenes are derived from cellular proto-oncoge

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Their genome contains an oncogene.

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(A) Retroviruses are known to cause cancer because they possess viral oncogenes $(v-onc)$.These viral oncogenes are derived from cellular proto-oncogenes $(c-onc)$ present in the host genome.When these viruses infect a host cell,they can integrate their genetic material into the host genome,potentially activating these proto-oncogenes or introducing viral oncogenes,which leads to uncontrolled cell division and cancer.

In human beings,retroviruses are considered a cause of cancer because:

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