Question

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

• A. Deletion of gene segment due to industrial pollution
• B. Industrial carbon deposited on wings
• C. Mutation of single Mendelian gene for survival in smoke laden industrial environment
• D. Translocation of block of genes in response to heavy carbons

Answer 1

The correct option is C Mutation of single Mendelian gene for survival in smoke laden industrial environment

Reason

During industrialisation the smoke and soot made the background darker.

The peppered moths underwent useful mutation for survival in the smoke laden environment.

The dark moths went unnoticed by the predators and increased in numbers.

Final answer
(c) Mutation of single Mendelian gene for survival in smoke laden industrial environment