IPTG is a molecular biology reagent utilized in cloning experiments. This compound is used as a molecular mimic of allolactose, a lactose metabolite that triggers transcription of the lac operon.ne advantage of IPTG for in vivo studies is that since it cannot be metabolized by E. coli its concentration remains constant and the rate of expression of lac p/o-controlled genes, IPTG is not a variable in the experiment.
The Ideal Height. The ideal bar stool should be approximately 28 to 30 inches high to match the 42 to 48 inches standard bar height.
And that's not good. Either is a stool that's too short. You don't want your guests to feel like they're looking up at the bar. Bar stools average a 30-inch seat height. This is an important measurement to remember, especially when it's easy to confuse a bar stool with a counter stool. Counter stools are typically shorter, with an average height of 26 inches.