Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).
Just install the Socratic app and it should let you scan a question
<span>Microsleeps </span>are sudden, unexpected moments of sleep that last 4-5 seconds. You should sleep well before you drive a car for example. As you can travel a long distance during microsleep
