BIO200H5 Lecture Notes - Lecture 1: Eze, Repressor, Transfer Rna
Document Summary
Info in genes is only useful if its read and turned into proteins. Gene expression, what each gene should produce in a specific area (cone cells, and pancreas) Genes are expressed depending on a complex interaction btw the genetic code and env. Not all ge(cid:374)es are e(cid:454)pressed a(cid:374)d tur(cid:374)ed i(cid:374)to protei(cid:374). O(cid:374)l(cid:455) ge(cid:374)es related to (cid:272)ell"s spe(cid:272)ialized function are expressed. Each cell use a subset of the total genetic code to meet its specialized needs. Proteins are made of polypeptides, long chains of amino acids joined together by peptide bonds. Sequence of amino acids determine the proteins shape and function, sequence is coded in dna. Protein synthesis: process by which genetic code in dna is decoded thru different kinds of rna into amino acids and eventually protein. Dna is transcribed onto mrna, which travels to cytoplasm where it translates genetic code into polypeptide folding it into the protein (cid:862)ce(cid:374)tral dog(cid:373)a(cid:863) of ge(cid:374)etics (cid:894)fra(cid:374)cis crick(cid:895)
