Biology
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Question

Evolution for Darwin was gradual, while de Vries believed that mutations, caused speciation. The belief of de Vries supports the concept of

  1. Saltation  
  2. Evolution  
  3. Genetic equilibrium  
  4. Variance  

The correct answer is: Saltation


    Hugo de Vries believed that mutation causes evolution and not the minor heritable variations, which was mentioned by Darwin
    Mutation are random and directionless, while Darwin’s variations are small and directional

    Term ‘saltation’ is also called single step large mutation, which leads to new specks

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