LIFE SCIENCE

Detailed explanation-1: -The frequency of dark-coloured moths increased at that time, an example of industrial melanism. Later, when pollution was reduced, the light-coloured form again predominated.

Detailed explanation-2: -Finally it was found that the color was genetic. 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.

Detailed explanation-3: -Scientists have discovered the specific mutation that famously turned moths black during the Industrial Revolution. In an iconic evolutionary case study, a black form of the peppered moth rapidly took over in industrial parts of the UK during the 1800s, as soot blackened the tree trunks and walls of its habitat.

Detailed explanation-4: -Moths’ ability to adapt to their environment through different color patterns allows them to camouflage against would-be predators. As environmental standards have reduced pollution in many parts of the world, moths are now breeding out the darker coloring to better adapt to their changing environment.

Detailed explanation-5: -As moths spend their daytime resting on tree barks, their color has evolved to match the color of the tree truck present in a locality. This helps them in hiding from their predators and increases their chances of survivability.