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.
Average business insurance costs for E & O coverage for small firms is typically in the range of $1,000 to $3,000 annually per million dollars of coverage.There are many ways to package policies, get discounts, and reduce your business insurance costs. A sole proprietor might pay $500 per year for general liability insurance, but a small consulting firm is likely to pay over $3,000 per year. 2  A sole proprietor who hems garments out of a home office has limited liability concerns, but a landscaper may pay upwards of $15,000 annually due to increased risk.