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

A particular trait may increase in population through:

(i) Natural Selection:

The organisms with useful traits and higher adaptability will survive. The fittest organism will be able to survive in the world.

Naturally selected over-abundance of offsprings can lead to a struggle for existence. Organisms with variations can survive and reproduce in an effective manner, producing a large number of offsprings with a longer life span.

(ii) Genetic drift: 

Genetic drift is the accidental changes in the frequency of genes in a population.

(iii) Mutation:

Mutation can be caused due to the difference in the DNA sequence responsible for the expression of the particular character.

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Updated on: 20-Mar-2023

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