Question

According to the theory of mutation by Hugo de Vries

• A. Only small mutation takes part in variation
• B. Only large mutation takes part in variation
• C. Both small and large mutation cause variation in species
• D. None of the above

Answer 1

The correct option is C Both small and large mutation cause variation in species

According to Devries the evolution is very fast like horse running
movement, but not slowly like snails movement as said by Darwin.
Devries also said that there are no middle forms between the ancestor
and new species.