Variations caused by mutation, as proposed by Hugo de Vries, are:

Variations caused by mutation, as proposed by Hugo de Vries, are:
  1. Random and directional
  2. Random and directionless
  3. Small and directional
  4. Small and directionless

Solution

Hugo de Vries theory:
1.  This theory is based on mutations.
2.  Mutations cause evolution.
3.  Mutations are random and directionless.
4.  Sudden mutations cause evolution.

Asked in: NEET 2019 (All India)

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