Question

What is the basis of origin of variations in organisms as described by Hugo de Vries? [AI 2013C]

Answer 1

Answer:

On the basis of above observations, Hugo de Vries (1901) put forward a theory of evolution, called mutation theory. The theory states that evolution is a jeřky process where new varieties and species are formed by mutations (discontinuous variations) that function as raw material of evolution.

Answer 2

Answer:

according to Hugo de vries mutation are large and single step process (saltation)