BIOL-UA 21 Lecture Notes - Lecture 4: Inosine, Wobble Base Pair, Transfer Rna

• School: New York University
• Department: Biology
• Course: BIOL-UA 21
• Professor: Mark Siegal

Document Summary

Three main types of biological macromolecules-proteins, nucleic acids, and polysaccharides i. All polymers composed of monomers b. c. d. e. The formation of a covalent bond between two monomers usually results in the loss of a water molecule- i. ii. A hydroxyl group from one and a hydrogen from the other. Amino acids differ only in side chains i. ii. 20 amino acids which when incorporated into a protein polymer are called residues. Central carbon bonded to an amino group, a carboxyl, a hydrogen atom, and a variable side chain. These molecules can be found in the d isomer or the l isomer a) Only l forms of amino acids are found in proteins. Ii) trna a. mrna codes for proteins i. ii. iii. iv. Each codon in the mrna comprises three nucleotides: a triplet. 64 possible codons (43) for 20 amino acids. No punctuation marks b. trna recognizes specific codons in the mrna i. ii.