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 ne

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.