BIOL240 Lecture Notes - Lecture 13: Francis Crick, Messenger Rna, Phosphodiester Bond
13 Feb 2018
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Objectives: recognize the basic structures, describe the functions and give examples of the following four major classes of organic molecules (biomolecules) (section. Nucleic acids encode genetic information in their nucleotide sequence. In 1953, james watson and francis crick introduced an elegant double- helical model for the structure of deoxyribonucleic acid, or dna. Use this space for additional notes and drawings: The structure of nucleic acids: nucleic acids are polymers called polynucleotides, each polynucleotide is made of monomers called nucleotides, each nucleotide consists of a nitrogenous base, a pentose sugar, and a phosphate group, see slide 3. General biology 1 (101-nya) lecture notes (lecture 4: nitrogenous bases: Pyrimidines (cytosine, thymine, and uracil) have a single six- membered ring. Purines (adenine and guanine) have a six-membered ring fused to a five-membered ring. In dna, the sugar is deoxyribose; in rna, the sugar is ribose. Nucleotide polymers: nucleotides are linked together to build a polynucleotide.
