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.
Best Answer: Depends on the size and type of business and where situated. A shop insurance policy (which covers liability) will cost from a few hundred pounds in a low risk area to several thousand depending on stock and location.A liability policy for a low risk trade could be less than Â£100 but if you are working at height e.g roofing and employ anyone then several thousand. shop insurance policy (which covers liability) will cost from a few hundred pounds in a low risk area to several thousand depending on stock and location.