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Biology · 2022 · 2 marks
CBSE 2022 · Region 1 · Set 1 · Q3
(a) Give an example of viral biocontrol agent. (b) Why are they considered to be desirable when an ecologically sensitive area is being treated?
(a)
Give an example of viral biocontrol agent.
(b)
Why are they considered to be desirable when an ecologically sensitive area is being treated ?
Marking-scheme solution
(a) Baculoviruses / Nucleopolyhedrovirus
(b) Species specific, narrow spectrum insecticidal application, no negative impact on plants / mammals / birds / fish / non-target insects, desirable for integrated pest management
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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.