BIO130H1 Lecture Notes - Lecture 3: Alpha Helix, Pentose, Disulfide
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BIO130H1 Full Course Notes
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This where all the links and identities of the nucleotide are atta(cid:272)hed to that sugar. It"s the (cid:271)ase that gi(cid:448)es the (cid:374)u(cid:272)leotide its ide(cid:374)tit(cid:455). Phosphate forms the backbone of a nucleic acid. Nucleotides can come with one phosphate, 2 or 3 attached. Among the pyrimidines, thymine has an extra methyl group. Rna is much more laibile, its much more easily degraded at high tmperatures, its much more unstable. A ribose sugar + a base is called a nucleoside. It has a sugar + base + 1 phosphate. Nucleoside diphosphate is a sugar + base + 2 phosphate. Nucleoside triphosphate has a sugar + base + 3 phosphate which is atp. Electrostatic aattractions are the ionic bonds, they are very strong in the absence of water, and they are seen in bonding of oppositely charged atoms. Hydrogen bonds are special form of polar interactions, h(cid:455)droge(cid:374) (cid:271)o(cid:374)ds are the stro(cid:374)gest (cid:449)he(cid:374) the(cid:455) are i(cid:374) a (cid:448)er(cid:455) straight orie(cid:374)tatio(cid:374).