NEET2007ZoologyEvolutionActual
Industrial melanism as observed in peppered moth proves that:
Options
- Athe melanic form of the moth as no selective advantage over lighter form in industrial area.
- Bthe lighter-form moth has no selective advantage either in polluted industrial area or non-polluted area
- Cmelanism is a pollution-generated feature
- Dthe true black melanic forms arise by a recurring random
Correct answer
D. the true black melanic forms arise by a recurring random
Step-by-step solution
Industrial melanism is a term used to describe the evolutionary process in which darker individuals came to predominate over lighter individuals because of the Industrial Revolution. This occurred as a result of natural selection in which a black 'melanic' form arose by a recurring random mutation, but its phenotypic appearance had a strong selective advantage in industrial areas. Related Theory During the period when the number of coal burning factories in England was increasing (during the so-called Industrial Re