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Biology · 2024 · 1 mark
CBSE 2024 · Region 3 · Set 1 · Q3
During the 1850s in the pre-industrialisation era in England, the expected effect of natural selection on the number of dark-winged moths as compared…
During the 1850s in the pre-industrialisation era in England, the expected effect of natural selection on the number of dark-winged moths as compared to white-winged moths was :
Official answer
(B)
less in number
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CBSE Class 12 Biology past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.