The 23andMe PGS Genetic Health Risk Report for MUTYHAssociated Polyposis is indicated for reporting of the Y179C and the G396D variants in the MUTYH gene. The test report does not describe a person's overall risk of developing any type of cancer, and the absence of a variant tested does not rule out the presence of other variants that may be cancer-related. The assay uses multiplex microarray technology for the simultaneous detection of variants in human DNA. The BeadChip v5 assay (Illumina Infinium HumanOmniExpress-24 format chip) consists of silicon wafers etched to form wells loaded with silica beads, on which oligonucleotide capture probes are immobilized.