Chapter_5_fall_2013

526 cytosine c thymine t uracil u purine double ring

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Unformatted text preview: urine Fig. 5.26 PENTOSE SUGAR PENTOSE Fig. 5.26c NITROGENOUS BASE NITROGENOUS Pyrimidine – single ring structure Fig. 5.26 •cytosine (C) •thymine (T) •uracil (U) Purine – double ring structure •adenine (A) •quanine (G) Nucleic acid – polymer of nucleotides Nucleic Bond phosphate Bond 5’ on Carbon 5 to oxygen on Carbon 3 Carbon Nucleic acid Nucleic polymer has a 5’ polymer end and a 3’ end end Information is Information stored in the sequence of 3’ bases bases Fig. 5.26 DNA Structure DNA Double-Stranded – Two nucleic acid chains joined at the nucleotide bases bases Bases in separate chains Bases pair: pair: A - T (purine to pyrimidine) G - C (purine to pyrimidine) DNA RNA Protein...
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