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Light coloured Peppered Moth/Biston betu...

Light coloured Peppered Moth/Biston betularia gets changed to its darker carbonaria variety due to

A

translocation of block of genes in response of heavy carbons

B

deletion of gene segment due to industrial pollution

C

mutation of single mendelian gene for survival in smoke laden industrial environment

D

industrial carbon deposited on wings

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The correct Answer is:
B
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