De Vries believed mutation to be the cause of speciation and hence it is called ___________.

Q. Assertion: According to Hugo de Vries, evolution is a gradual and continuous process

Reason: He believed that accumulation of smaller mutations over several generations is responsible for evolution

Q. Which cause speciation according to Hugo de vries?

Q. Theory of mutation by a De Vries considers that :

Q. Variations caused by mutation, as proposed by Hugo de Vries, are

Q. Assertion [A]: Evolution is a continuous process that takes millions of years for speciation.
Reason [R]: During evolution only mutation leads to speciation.