Evolution Question 90

90. The change of the light-coloured variety of peppered moth (Biston betularia) to its darker variety (Biston carbonaria) is due to

[1995]

(a) mutation

(b) regeneration

(c) genetic isolation

(d) temporal isolation

Show Answer

Answer : a

Hints & Solution

(a) The change in the colour of peppered moth is due to the mutation of single mendelian gene for the survival in the smoke-laden industrial environment. It is called Industrial melanism.