A) The true black melanic forms arise by a recurring random mutation
B) The melanic form of the moth has no selective advantage over lighter form in industrial area
C) The lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area
D) Melanism is a pollution- generated feature
Correct Answer: A
Solution :
Industrial melanism is a term used to describe the evolutionary process in which darker individuals come to predominate over lighter individuals since the industrial revolution as a result of natural selection. In 1848 a black form of the moth was recorded in Manchester and by 1895, 98% of the peppered moth population in Manchester was black. This black "melanic" form arose by a recurring random mutation, but its phenotypic appearance had a strong selective advantage in industrial areas.
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