Question

Which one of the following phenomena supports Darwin's concept of Natural Selection in organic evolution?

विकल्प

• Development of transgenic animals

• Production of "Dolly", the sheep by cloning

• Prevalence of pesticide resistant insects

• Development of organs from 'stem cells' for organ transplantation

Answer 1

Prevalence of pesticide resistant insects

Explanation:

Some insects have variations that help them survive exposure to pesticides. They reproduce and pass on these useful variations, so resistant insects become more common. This is natural selection.