NEET BIOLOGY

Detailed explanation-1: -The black coloured peppered moth form became dominant over the light coloured form of moth in England during industrial revolution.

Detailed explanation-2: -After the pollution from the Industrial Revolution started affecting trees, most of the collected peppered moths were of the dark form. Click for more detail. As the trees darkened with soot, the light-colored moths were easier to see.

Detailed explanation-3: -The evolution of the peppered moth is an evolutionary instance of directional colour change in the moth population as a consequence of air pollution during the Industrial Revolution. The frequency of dark-coloured moths increased at that time, an example of industrial melanism.

Detailed explanation-4: -But as the Industrial revolution began to really take off in the 1800s, pollution from the dense industrial smoke and soot killed off lichens and darkened tree trunks and walls in towns and cities. As a result, the paler moths became more visible to predators, while the darker variety became more camouflaged.

Detailed explanation-5: -Genetic Changes Moths passed their color to the next generation. Eggs from light moths developed into light moths and dark moth eggs turned to dark adults. The dark color was caused by a mutation in the DNA of a single moth, and the mutated gene had been passed to all its offspring.