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    Cell BioChem

    NaCl DNA Standards

    We did a lab with DNA standards. We made one to one solutions of onion DNA that we precipitated and a 4% NaCl soln. We measured the amount of DNA using spectrophotometers. When we boiled the solution before measurement, the NaCl precipitated. This made the solution cloudy and the absorbancy readings inaccurate. I'm wondering

    DNA encodes proteins

    Double stranded DNA isolated from a bacteriophage has a molecular weight of 2.1x10E8 Da. (1) Using this information, how many amino acids would this DNA encode? (2) How many different proteins could be encoded by this DNA, if the protein molecular weight is 69 kDa? These ideas are depicted.