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 ...

But when the students go home, Grosser gets out her agar plates ... blue colonies. “While this is not my neatest work or most complex design, I love the way the colors turned out,” said Grosser. To ...

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.

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 ...