Complex sentence: DNA from a tumor sample and normal reference sample are labelled differentially using different flurophores and hybridized to several thousand probes, derived from most of the known genes and non coding regions of the genome, printed on a glass slide.
Split into simpler sentences: DNA from a tumor sample and normal reference sample are labelled differentially using different flurophores. Probes are hybridized to several thousand probes, derived from most of the known genes and non coding regions of the genome, printed on a glass slide.