Multiple choice

Hybrid vigour of a plant can be maintained for long periods by

  1. selfing

  2. cross-pollination

  3. mutation

  4. clonal selection
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Clonal selection or vegetative propagation allows for the maintenance of hybrid vigour (heterosis) because it produces genetically identical offspring, preventing the segregation of traits that occurs in sexual reproduction.

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