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.
Therefore a tall bar at 42 height should use a 30 seat height stool. This is generally accepted as standard. * Occasionally some manufacturers will make a 26 stool to try and accommodate a short counter top and a tall bars with the same item. However, it is a better match using the 24 and 30 height for the respective two standard counter and tall barstool heights.