Which of the following statements is NOT true | vedclass

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(A) Retroviruses are a group of viruses that contain $RNA$ as their genetic material. During their life cycle,they use an enzyme called reverse transc

Vedclass · Accepted Answer

$DNA$ is not present at any stage of the retrovirus life cycle.

Vedclass · Answer

(A) Retroviruses are a group of viruses that contain $RNA$ as their genetic material. During their life cycle,they use an enzyme called reverse transcriptase ($RNA$-dependent $DNA$ polymerase) to convert their $RNA$ genome into $DNA$ inside the host cell. This newly synthesized $DNA$ is then integrated into the host genome. Therefore,the statement that '$DNA$ is not present at any stage of the retrovirus life cycle' is false,as $DNA$ is a crucial intermediate in their replication process.

Which of the following statements is $NOT$ true for retroviruses?

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Reason $R$: Interferons protect cells from viral infection.
Which option is correct for Assertion $A$ and Reason $R$?

Spread of cancerous cells to distant sites is termed as

What is metastasis?

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Which of the following statements is $NOT$ associated with cancer?

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