What_genes_do - SECTION 1 REVIEW WHAT DO GENES DO 0 Objectives of this lecture 1 What do genes do a Genes encode proteins b Proteins have 3 generic

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©jlmarsh 2006 1 SECTION 1 - REVIEW- WHAT DO GENES DO? 0] Objectives of this lecture 1- What do genes do? a. Genes encode proteins b. Proteins have 3 generic functions 2- Key elements of most of genetics a. Alleles segregate = genetic version of the cell biology observation that chromosomes separate b. Non-homologs assort independently c. Complementation = test of genetic allelism – note this is a functional test. d. Relation between physical definition of a gene and genetic definition. 1] What do genes do or what do they code for? What is their product? WHAT IS A GENE? = CENTRAL DOGMA (essential concept #1) 1a. GENES ENCODE PROTEINS Proteins = strings of amino acids linked by peptide bonds (~20 amino acids) -Proteins = large poly peptides, smaller ones are often called simply peptides or oligo peptides. Oligo = greek for FEW. Gene = DNA that encodes the information to direct synthesis of a protein. (namely linking together of a particular sequence of amino acids). DNA -> RNA -> Protein = CENTRAL DOGMA
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This note was uploaded on 12/13/2011 for the course BIOSCI 137 taught by Professor Staff during the Fall '11 term at UC Irvine.

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What_genes_do - SECTION 1 REVIEW WHAT DO GENES DO 0 Objectives of this lecture 1 What do genes do a Genes encode proteins b Proteins have 3 generic

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