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  • Solve! According to Hugo de Vries , the mechanism of evolution is

According to Hugo de Vries , the mechanism of evolution is

  • Option 1)

    Phenotypic variations

  • Option 2)

    Saltation

  • Option 3)

    Multiple step mutations

  • Option 4)

    Minor mutations

 

Answers (2)

best_answer

As we learnt in

Discontinuous Distribution -

Descendants of a common ancestor in some cases inhabit different continents and also differ from each other. 

- wherein

This is called Discontinuous Distribution.

Eg., aligators and mangolias, tulip and sassafras

 

As per mutation theory given by Hugo de Vries, the evolution is a discontinuous phenomenon or saltatory phenomenon/saltation.

 


Option 1)

Phenotypic variations

This is incorrect.

Option 2)

Saltation

This is correct.

Option 3)

Multiple step mutations

This is incorrect.

Option 4)

Minor mutations

This is incorrect.

Posted by

Aadil

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