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The active form of AIDS causing virus HIV is a
A{'text': 'Prion, a proteinaceous infectious agent', 'label': 'A'}
B{'text': 'DNA virus with linear DNA genome', 'label': 'B'}
C{'text': 'RNA retrovirus with reverse transcriptase', 'label': 'C'}
D{'text': 'Bacteriophage that infects bacteria', 'label': 'D'}
Answer & Solution
Correct answer: C. {'text': 'RNA retrovirus with reverse transcriptase', 'label': 'C'}
1. HIV (Human Immunodeficiency Virus) causes AIDS.
2. It is a retrovirus with an RNA genome and reverse transcriptase enzyme.
3. Reverse transcriptase makes a DNA copy of viral RNA in the host cell.
4. The DNA integrates into the host genome and produces new HIV virions.
_Source: NCERT Class 12 Biology, Ch 7 "Human Health and Disease", §7.3_
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