The effects of genetic drift are more pronounced in smaller

The effects of genetic drift are more pronounced in smaller populations?

True or False

Solution

Genetic drift: it is defined as change in allelic frequency in a population due to random sampling.

Yes it is true that the effects of genetic drift are more pronounced in smaller populations. Genetic drift is completely random and in a smaller population if there is a mutation in a member of the population and his offspring, they constitute the larger proportion of the population. As genetic drift is random and in isolated populations, the lack of competition can allow such disadvantaged populations to survive where as in larger population they are ruled out by their more fit neighbours.