bild lecture week 8

bild lecture week 8 - From Genes to proteins 1 Information...

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From Genes to proteins 1.) Information content is in the specific sequences of nucleotides a. DNA dictates protein synth in 2 stages a.i. Transciprtion a.ii. Translation b. Beadie + Tatum: hypothesized that the function of a gene is to dictate the production of a specific enzyme. 1 gene = 1 enzyme…or protein, polypeptide, RNA… b.i. X->Y -> Arginine, if you disrupt y, then you can’t get Arginine 2.) Two steps of gene expression a. 1. RNA transcription: produces mRNA. In nucleus. b. Protein translation: synth of polypep by direction of mRNA. Occurs in ribosomes. 3.) Central Dogma a. DNA (transcription)RNA (translation) PROTEIN b. Prokaryotes, without nucleus, simultaneous transcirtpion and translation c. Euks: with nucleaus, transption and translation separated and requires RNA to process c.i. = more steps for regulation and gene expression 4.) Genetic Code a. How do nucleic acids correspond to an amino acid a.i. CODONS: word that 3 nucleotides make. Must be read in correct order.
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This note was uploaded on 01/10/2012 for the course BIOLOGY BILD 1 taught by Professor Traver during the Spring '10 term at UCSD.

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bild lecture week 8 - From Genes to proteins 1 Information...

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