DURHAM, N.C.--(BUSINESS WIRE)--Expression Analysis, a leading provider of genomic services for clinical trials and research, has confirmed the purchase of the first Helicos™ Genetic Analysis System, from Helicos BioSciences Corporation, and will shortly accept delivery of this state-of-the-art instrumentation. The system consists of the HeliScope™ Single Molecule Sequencer, the HeliScope™ Analysis Engine and the Heliscope™ Sample Loader, all designed for production-level genetic analysis. Central to the platform is the proprietary sequencing-by-synthesis approach called True Single Molecule Sequencing (tSMS)™.