Random unidirectional change in allele frequencies that occurs by chance in all populations and especially in small populations is known as
migration
natural selection
genetic drift
mutation.
In HardyWeinberg equation, the frequency of heterozygous individual is represented by
Give scientific reasons : Genetic drift is much more likely to change allele frequencies in a small population rather than large population.
Initiating force of evolution is
Random genetic drift in a population probably results from