Kong GWS, et al. – In this study, researchers validate the BACs–on–Beads (BoB) technology as a robust and high throughput method for pre–implantation genetic screening (PGS) for aneuploidy. This new strategic approach using BoBs as a first tier PGS screening tool and aCGH as a confirmatory tool can increase the throughput of PGS with a decreased cost and time to meet the demand in high volume units.