NEET 2019 · Class 12

Evolution

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

  1. (A)random and directionless
  2. (B)small and directional
  3. (C)small and directionless
  4. (D)random and directional

The NCERT line that answers it

Verbatim line

Mutations are random and directionless while Darwinian variations are small and directional.

Chapter
Evolution
Section
6.6 MECHANISM OF EVOLUTION
Page
9
Words matched
12 of 12

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'Mutations are random and directionless', which directly matches option A and distinguishes it from all other options.

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