Genetic drift tends to occur in populations that (1 point)are very large. are small. are formed from new species. have unchanging allele frequencies
The answer is that are small
Biologists consider genetic drift as a random change in a gene variant due to random sampling organism
Answer: The correct answer is-
Genetic drift tends to occur in populations that are small.
Genetic drift can be described as an evolutionary mechanism, according to which frequency of gene variant ( that is allele frequency) changes over generation within a population due to some random/ chance events.
It has a pronounced impact on population with small size.
This is because in small population, infrequently-occurring gene variants have a larger probability of getting lost.
As it is initiated,it will continue until the gene variant is either lost or is the only allele left at the gene locus within a population.
This will result in the decrease of the genetic diversity of population.