Biochemistry 2280A Study Guide - Final Guide: Thymidine, Deoxyribonucleotide, Nitrogenous Base

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Forming the ribosome, along with proteins, and catalyzing protein synthesis (rrna) Carrying amino carrying amino acids to the growing peptide chain during protein synthesis (trna) Dna: is a linear polymer composed for deoxyribonucleotide monomers. Rna: is a linear polymer composed of ribonucleotide monomers. Each dna/rna monomer is composed of 3 parts: monosaccharide, nitrogenous base, phosphate. Note: it"s like ribose, except that c2" bears two hydrogen atoms, instead of one hydrogen and one oh. There are two types of nitrogenous base: purines: adenine (a) and guanine (g, pyrimidines: cytosine (c) thymine (t) uracil (u) note uracil is identical to thymine except uracil lacks ch3 group. Pyrimidines join to c1" of ribose or deoxyribose via n1 position. They join to c1" of ribose/deoxyribose via n9 position. In living systems, the anomeric carbon of ribose/deoxyribose is ordinarily the. Beta configuration when joined to a nitrogenous base. The sugar and base are joined via n-glycosidic bond.