What are the different ways in which individuals with a particular trait may increase in a population
Answers
Traits arise due to variations which occur due to sexual reproduction of inaccuracies during DNA copying or environmental factors. Now, the individuals with a particular trait may increase in a population due to the following factors :
(i) Natural selection: Those variations which give survival advantage to an organism are selected in nature and such traits increase in population.
(ii) Genetic drift: It occurs due to change in gene frequency due to accumulation of particular type of genes.
(iii) Geographical isolation: It leads to change in gene frequency leading to expression of one type of traits in a geographically isolated population.
(iv) Migration: It leads to flow of a particular type of gene in a specified population.
The 4 ways by which individual with a particular trait may increase in population are in following factor :
1. Natural selection :those variation which give survival advantage to an organism are selected in nature and such trait increase the population.
2.Genetic drift:it occurs due to change in gene frequency due to accumulation of particular type gene.
3.Geographical isolation :it leads to change in gene frequency leading to expression of one type traits in a geographically isolated population.
4.Migration : it leads to flow of a particular type of gene in specified population.