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Unformatted text preview: • Five carbon sugar • Phosphate (PO 4 ) group • A nitrogen-containing (nitrogenous) base. The base may be a purine (adenine, A or guanine, G), a two-ringed structure; or a pyrimidine (thymine, T or cytosine, C), a single-ringed structure. RNA contains the pyrimidine uracil (U) in place of thymine. 4. What term best describes the basic method of replication for DNA? Semiconservative 5. What is meant by "complementary" base pairing? Although the stands are no identical, they each can be used to specify the other by base-pairing. Ex. ATGC-TACG 6. Name the three major steps involved in the replication of DNA. • Initiation • Elongation • Termination Andrew Platt...
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