BIOA01H3 Lecture Notes - Lecture 1: Nucleoside Triphosphate, Deoxyribonuclease, Phosphodiester Bond
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BIOA01H3 Full Course Notes
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Proteins keep cells alive, functioning look how genes are organized into chromosomes how gene is transcribed, translated etc. understanding structure of dna helps understand. A causal relationship between structure and functions exist in many molecules structure of dna allows it to store and transmit information structure and storage killed. Every case showed that the virulent and non-virulent. Avery and mcleod experiment people believed that it might be proteins in this exp. Dna is built from nucleotides 4 bases. A sugar and base = a nucleoside, sugar + base + Dna (cid:373)olecule ru(cid:374)s 5"-3" to form the sugar phosphate backbone, nucleotides form phosphodiester bonds sugar-phosphate backbones wind around the outside of the molecule and the bases point inwards, while the strands run anti-parallel (opposite directions) A-t are held together by 2 hydrogen bonds. G-c are held together by 3 hydrogen bonds.
