Question

Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution ?

• A. Development of transgenic animals
• B. Production of 'Dolly' the sheep by cloning
• C. Prevalence of pesticide resistant insects
• D. Development of organs from 'stern cells' for organ transplantation

Answer 1

Answer: (C)

Prevalence of pesticide resistant insects

Answer 2

Pesticide-resistant insects are an example of how species can adapt to environmental changes through natural selection. In this case, the insects that had genetic variations allowing them to survive exposure to pesticides were more likely to reproduce and pass on their resistant traits, leading to a higher prevalence of resistant individuals in the population over time. This is a classic example of how natural selection can lead to the evolution of traits that enhance an organism's survival and reproductive success in changing environments.

So, the correct option is (C): Prevalence of pesticide resistant insects