You briefly expose bacteria undergoing dna replication to radioactively labeled nucleotides. When you centrifuge the dna isolated from the bacteria, the dna separates into two classes. One class of labeled dna includes very large molecules (thousands or even millions of nucleotides long), and the other includes short stretches of dna (several hundred to a few thousand nucleotides in length). These two classes of dna probably represent
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In DNA base pairing, the base pairs are adenine-thymine and guanine-cytosine. ... If double stranded DNA has 14% G (guanine), what percent A (adenine), T (thymine) and C (cytosine) would you expect? ... If a sample of DNA has 15% Adenine, then what percentage of cytosine does it have?
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