Question

Mechanism of evolution proposed by de Vries is based on :

• A. Mutations
• B. Variation
• C. Adaptation
• D. Reproduction

Answer 1

The correct option is A Mutations

Concept of mutations was put forth by Hugo de Vries who worked on evening Primose. He stated that mutation causes evolution and not the minor variations that were suggested by Darwin. Mutations are sudden, random and directionless while Darwinian variations are small and directional.

So, the correct answer is 'Mutations'