04 09 13 lecture 3 nucleic acids an information

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Unformatted text preview: 9-13: Lecture 3 Nucleic Acids – An information storage macromolecule polymer of nucleotides linked by phosphodiester bonds Function: dehydration bond Information Storage molecule Store Energy (ATP) 2 Types: DNA – deoxyribonucleic acid Permanent blueprint for specifying proteins Makes up our genes, seen as chromosomes in the nucleus RNA – ribonucleic acid mRNA – temporary blueprint of information for specifying proteins tRNA – transfer RNA rRNA – ribosomal RNA Both DNA and RNA are involved in protein synthesis! Central Dogma: 04-09-13: Lecture 3 Nucleic Acids – An information storage macromolecule 3 parts to a nucleotide (monomer of nucleic acids) Ribose (RNA) or deoxyribose (DNA) Phosphate Base: DNA Adenine Guanine Thymine Cytosine RNA (A) (G) (T) (C) Adenine Guanine Uracil Cytosine (A) (G) (U) (C) 04-09-13: Lecture 3 Nucleic Acids – An information storage macromolecule C1 is attached to base Purines A and G (2 rings) Pyrimidines C , T , and U (1 ring) C2 is missing OH in DNA C3 is reactive site (3’end or 3’OH) C5 attached to phosphate: reactive (5’end or 5’ phosphate) Base u 04-09-13: Lecture 3 Nucleic Acids – An information storage macromolecule Polymer of nucleotides linked by phosphodiester bonds...
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