Describe any three ways in which individuals with a particular trait may increase in population

CBSE Class 10 CBSE Class 10 Science
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1

Describe any three ways in which individuals with a particular trait may increase in population.

2

Three ways may increase a trait in population:

  1. Genetic drift : It causes drastic changes in frequencies of a particular trait/gene by chance only.
  2. The struggle for survival of fittest in populations eliminates unfit/unfavourable individuals. The fittest survive, reproduce and flourish and get selected by nature.
  3. Geographical Isolation of a population by means of different barriers like, sea, river etc. can lead to increase a particular trait by reproductive Isolation there.