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70% of the population have at least one copy of allele A. 1096 have at least one copy of allele B, & 20% have at least one copy of the allele C. Allele A 5′-GATCCTGT-3′ Allele B 5′-GATCCAGT-3′ Allele C 5′ -GATCCCGT-3′ Which of the following is an example of this variation? Single nucleotide polymorphism (SNP) A point mutation Chromosome rearrangements Polyploidy A & B A & C