PSYD33H3 Lecture Notes - Lecture 3: Chain Termination, Prokaryote, Ribosomal Rna
Document Summary
Deleting or adding one base pair for viral dna, Induce 1 mutation in gene or virus, all amino acid will get changed; get shifted. If eliminated 2 base pairs, same result: but if eliminate/ add 3 base pairs, remaining portion of that gene will make sense (amino acid sequence will all be in register, e. x. Genetic code made of 3 bases each. Codons: each codon representing a unique protein/ amino acid. Each codon codes for 3 base pairings in dna. 20 essential amino acids in mammals, humans. Genetic code: sequence of dna with 3 base pairings; that through rna specific for an amino acid. Specific nucleotides pairings; when 3 together (genetic word/ codon) attracts particular amino acid in protein chain. Early days, figured out genetic code by first using same word consisting of same base pairings and see which amino acid was produced by it. Strings of protein consisting of same amino acid = uuu.
