MADISON, Wis--(BUSINESS WIRE)--Researchers from France investigating DNA copy number changes associated with genetic disorders have reported the development and validation of a Roche NimbleGen CGH multiplex, microarray-based research method for detecting genomic deletions and duplications at high-resolution. The findings, published in the August 5 issue of the journal Human Mutation (1), identified highly precise, exon-level variants in DNA samples from affected individuals and carriers of a range of human diseases including muscular dystrophies and cystic fibrosis.