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1. |
Which statement correctly describes the role of chance in evolution? |
A. | An allele that increases evolutionary fitness cannot be lost from a population by chance events. |
B. | The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA |
C. | Evolutionary change proceeds by an accumulation of changes that occur by chance. |
D. | None of the above |
Answer» C. Evolutionary change proceeds by an accumulation of changes that occur by chance. | |