AIIMS 2018 Botany AIDS Assertion Reason Question
Assertion: AIDS occurs by retroviruses whose RNA is enveloped. Reason: It enters into the cell & forms new viruses.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not correct explanation of A
A is true but R is false
A and R are false
Correct Answer
Detailed Explanation
Option B is correct because both the assertion and the reason are true: AIDS is indeed caused by retroviruses, specifically the Human Immunodeficiency Virus (HIV), which has an enveloped RNA genome. The reason accurately describes the viral life cycle, where the virus enters host cells and utilizes the host's machinery to replicate and produce new virions, but it does not specifically explain why AIDS occurs, as the disease results from the immune system's decline due to the virus's action over time.
Option A is incorrect because, while both statements are true, the reason does not provide a direct explanation for the assertion. Option C is incorrect since the assertion is true, and the reason is also true. Option D is incorrect because both statements are factual.
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