BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }Hi All, In the paper Exploration, normallization, and genotype calls of high-density oligonucleotide SNP array data, Benilton Carvalho, Henrik Bengtsson, Terrence Speed, Rafael Irizarry; it says: " Our methodology makes no use of the MM features mainly because we see a trend in the company no longer to use this type of probe. Note that an array with no MMs can accommodate features for twice as many SNPs." I happened to read another paper on BMC Bioinformatics, Feb 2009, Genotype and inflated type I error rate in genome-wide association case/contronl studies, Joshua Sampson and Hongyu Zhao, in Table 1, page 3, indicates CRLMM "indicates use of mismatched probes" Would someone comment whether or not CRLMM is MM idependent? Thank you Kind Regards, My Coyne mcoyne@boninc.com (cel): 301-399-6351 [[alternative HTML version deleted]]