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I'm retired <a href=" http://www.eden-patio.com/index.php/lipitor-5mg-tablet#frosty ">lipitor 5mg tablet</a> But creating an engaging museum exhibit about genetics isn't exactly easy: Even when magnified to hundreds of times its microscopic size, DNA is, at its heart, a series of bonded chemicals. The best visual representation of it is a bunch of A's, C's, T's and G's (for adenine, cytosine, thymine and guanine, respectively, the four "nucleic acids" that make up every single living thing on Earth).