Gel electrophoresis is used to separate things (DNA, RNA, or proteins) by their size. Gel electrophoresis is used to separate things (DNA, RNA, or proteins) by their size. For example, say you have a sample of protein that you have prepared accordingly and want to separate by size. You would run it through a gel, and after a designated amount of time, would view the progress that the protein has made through the gel, and then image the gel.
Most states require plumbers to be licensed, and they typically provide a number you can call to verify that the license is current and that there are no active complaints against it. Any plumber you consider should also hold a current workers' compensation policy and a minimum of $500,000 liability insurance. All states issue plumbing-contractor licenses, and the licensing board can confirm a plumber's legitimacy.
But the alternatives can be apocalyptic. Click here for quotes on different types of plumbing jobs. The cost of a plumber ranges from $160 to $430 for a typical job with the average cost per hour ranging from $45 to $150. This can include jobs like repairing faucets, toilets, sinks or bathtubs. Some plumbers may also charge a flat rate depending on the job.