Home
Class 12
BIOLOGY
The change of the lighter-coloured varie...

The change of the lighter-coloured variety of peppered moth (Biston betularia) to its darker variety (Biston carbonaria)is due to

A

mutation

B

regeneration

C

genetic isolation

D

temporal isolation

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the change of the lighter-colored variety of the peppered moth (Biston betularia) to its darker variety (Biston carbonaria), we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Phenomenon**: The question refers to the color change in the peppered moth, which is a well-documented example of natural selection and industrial melanism. 2. **Identifying the Color Variants**: The lighter-colored variety (Biston betularia) was more common before the industrial revolution, while the darker variety (Biston carbonaria) became more prevalent due to environmental changes. 3. **Environmental Impact**: The industrial revolution led to increased pollution, which darkened the trees and surroundings. This change in the environment favored the darker moths because they were better camouflaged against predators in the polluted environment. 4. **Role of Mutation**: The change in color from lighter to darker is a result of genetic mutations that occurred in the moth population. These mutations provided the darker coloration that helped the moths survive better in their altered environment. 5. **Conclusion**: The correct answer to the question is that the change of the lighter-colored variety of peppered moth to its darker variety is due to **mutation**. ### Final Answer: The change of the lighter-colored variety of peppered moth (Biston betularia) to its darker variety (Biston carbonaria) is due to **mutation**. ---
Promotional Banner

Similar Questions

Explore conceptually related problems

Replacement of the lighter-coloured variety of peppered moth (Biston betularia) to its darker variety (Biston carbonaria) in England is the example of

Light coloured Peppered Moth/Biston betularia gets changed to its darker carbonaria variety due to

Which type of selection is industrial melansim observed in moth, Biston betularia?

In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of

In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of

In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revolution. This is an example of

Populations of peppered moth Biston betularia of England underwent directional selection during and after industrialisation. The selective agent causing the change was/were

Industrial melanism in peppered moth occurred due to natural selection . The significant reason for this is (a) the light coloured white moths could not be noticed by predatory birds after deposition of soots on bark of trees (b) mutation in light coloured moths due to increase in industrial pollution (c) advantageous selection of black moths on tree in polluted areas, resulting in increase population of black moths (d) advantageous selection of white moths on tree in polluted areas, resulting in increased population of white moths

Fill up the blanks with suitable words: Increase in melanic variety of peppered moth was explained by .........