Which of the following is not part of a microarray used to detect SNPs? Question 2 choices Choice A., short DNA sequences attached to a glass slide Choice B., oligonucleotides that match the sequence of a known SNP site in the genome Choice C., mRNAs that are expressed from a specific gene Choice D., short DNA sequences synthesized with a specific sequence Choice E., oligonucleotides that differ in sequence only at the SNP itself and are positioned at different locations on a glas