Which Statement Correctly Describes Single-Nucleotide Polymorphisms (SNPs)

Multiple Choice

Which statement correctly describes single-nucleotide polymorphisms (SNPs) ?

A) A SNP locus typically has more than two alleles.
B) SNPs are typically used as markers of a region of the genome.
C) The frequency of the rarer SNP allele must be less than 1%.
D) SNPs are the least common form of human genetic variation.
E) If only two alleles are associated with a SNP, both must have relatively the same frequency in the population.