Question

Which Type of Selection Increases Genetic Variation?

Answer 1

Disruptive selection

1. Disruptive selection is a type of selection which reduces the reproduction of organisms with intermediate traits and allows organisms with extreme traits to reproduce more.
2. Hence, disruptive selection favours the extreme phenotypes and eliminates the intermediate ones.
3. A classic example of disruptive selection is the beak size of finches found on the Galapagos Islands.
4. Peppered moths are also one of the most studied examples of disruptive selection.