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.
Barstools are sized in relation to the counter, with 12 inches between the seat of the stool and the underside of the countertop. For a bar height counter, a 30-inch stool is ideal, while extra-high countertops may require a seat up to 34 inches high. To choose the best height for your specific counters, measure down from the underside of the countertop to the floor and subtract 12 inches from this distance. Photo Credits.