The iScan system utilises Bead-Array microarray technology for a broad range of DNA and RNA analysis applications. Each bead on Illumina arrays is covered with hundreds of thousands of copies of specific oligos that act as the capture sequences in one of our array-based assays.Bead-Array product density advancements have increased genomic coverage for whole-genome genotyping, resolution for cytogenetics and CNV detection, and sample throughput for gene expression, DNA methylation, and focused genotyping products.