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Random genetic drift in a population probably results from : -
A
Highly genetically variable individuals
B
Interbreeding within this population
C
Constant low mutation rate
D
Large population size
Detailed Solution
Genetic drift is the random change in allele frequencies from one generation to the next due to chance alone (sampling error).
Its effect is significant only in small populations, where only a few individuals breed. In a small, isolated population the members interbreed among themselves, and by chance some alleles may become very common or may be lost.
Examples are the founder effect and the bottleneck effect.
In a large population, chance fluctuations average out, so drift is negligible. High variability or a constant low mutation rate do not cause drift.
So random genetic drift probably results from interbreeding within this (small) population.
Its effect is significant only in small populations, where only a few individuals breed. In a small, isolated population the members interbreed among themselves, and by chance some alleles may become very common or may be lost.
Examples are the founder effect and the bottleneck effect.
In a large population, chance fluctuations average out, so drift is negligible. High variability or a constant low mutation rate do not cause drift.
So random genetic drift probably results from interbreeding within this (small) population.