Give scientific reasons: Genetic drift is much more likely to change allele frequencies in a small population rather than a large population.

(N/A) In a large population,the effect of chance events on allele frequencies is negligible because the large number of individuals buffers against random fluctuations.
However,in a small population,the number of individuals carrying a specific allele is low.
Therefore,random chance events (such as accidents,natural disasters,or sampling errors) can significantly increase,decrease,or even completely eliminate certain alleles from the gene pool,leading to a rapid change in allele frequencies.