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Biology · 2022 · 2 marks
CBSE 2022 · Region 4 · Set 2 · Q1
How does Human Immuno deficiency Virus cause immuno deficiency in the human body?
How does Human Immuno deficiency Virus cause immuno deficiency in the human body ?
Marking-scheme solution
By attacking Macrophages and helper T-Lymphocytes (cells), progressively decreasing their numbers
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CBSE Class 12 Biology past-paper question from the 2022 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.