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A) major genetic changes that occurred over generations 70 through 80 B) minor genetic changes that occurred over generations 50 through 100 C) minor genetic changes that occurred 1 through 50 D) min
A) major genetic changes that occurred over generations 70 through 80
B) minor genetic changes that occurred over generations 50 through 100
C) minor genetic changes that occurred 1 through 50
D) minor genetic changes that occurred 1 through 100