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7.Human Health and Disease
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In the given flow diagram, the replication of retrovirus in a host is shown. Observe and answer the following questions.
$(a)$ Fill in $(A)$ and $(B)$
$(b)$ Why is the virus called retrovirus ?
$(c)$ Can the infected cell survive while viruses are being replicated and released ?
Option A
Option B
Option C
Option D
Solution
$(a)$ $(A)$ : Viral $DNA$ is produced by reverse transcriptase. $(B)$: New viral RNA is produced by infected cell.
$(b)$ $HIV$ is called retrovirus because it forms $DNA$ from $RNA$ by reverse transcription.
$(c)$ Yes, infected cell can survive while viruses are being replicated and released.
Standard 12
Biology
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