During an inspection, E. coli was found at 1,000 times the legal limit in Crosby, Texas, roughly 30 minutes northeast of Houston. Although the contaminated water isn't getting into the region's ...

Thus organisms capable of lactose fermentation such as Escherichia coli, form bright pinky-red colonies (plate pictured on the left here). MacConkey agar is commonly used to differentiate between the ...

transform separately pET11a-link-NGFP and pMRBAD-link-CGFP into an E. coli strain that gives high-quality plasmid DNA (for example, DH10B or XL1-Blue) and plate onto selective agar media.