Which event is an example of genetic drift? an earthquake kills 90 percent of the green beetles in a population of green, black, and brown beetles. a green beetle travels from its population into a new population of entirely black and brown beetles. green beetles have better camouflage than brown or black beetles and are not eaten as often. warm temperatures cause green, black, and brown beetles to start reproducing earlier than normal.

The answer is C. Genetic drift is the change of an allelic frequency due to random sampling in a population. When the brown and black bottles are preyed upon compared to the green bettles, their numbers in a population decrease. Therefore the next generations/offsprings of bettles population is more likely to be of green beetles since they will be more in the parent population. The allelic frequency of the allele for green bettles becomes higher than that of brown and black beetles. Eventually, after generations, the black and brown beetles may be eliminated from the population

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