NEET BIOLOGY

GENETICS AND EVOLUTION

INHERITANCE AND VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why did the pepper moths in England turn brown from pale in 1900?
A
Because the darker ones were more attractive to moths, so they reproduced more
B
Because the white ones couldn’t camouflage on people’s clothes
C
Because of the pollution during the industrial revolution. The pollution cause the pale lichens on trees to die of and turned the bark brown. The pale moths could not hid from predators on the dark bark.
D
There is no reason for that to happen.
Explanation: 

Detailed explanation-1: -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-2: -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-3: -What was rare in 1848 became common over the next fifty years. By 1900, the peppered moth populations in areas around English cities were as much as 98% dark moths. Scientists became curious why this was happening.

Detailed explanation-4: -They became extinct because these moths could not adapt to the environment.

There is 1 question to complete.