What is the hourly production rate of chlorine gas (in kg) from an electrolytic cell using aqueous NaCl electrolyte and carrying a current of 1.500 3 103 A? The anode efficiency for the oxidation of Cl2 is 93.0 percent.
Chapter 11 Gene Expression: From Transcription to Translation Relationship Between Genes & Proteins Finding the link between genes and proteins: o 1908, Archibald Garrod investigating the metabolic condition alcaptonuria concluded people suffering from this disorder lacked an enzyme necessary to oxidize a metabolite produced in the breakdown of two amino acids o He hypothesized, based on newly discovered Mendelian genetics, that such patients has a mutation in a gene to synthesize this enzyme – the first scientific link between a human disease and a genetic mutation More convincing evidence of the link between phenotype and genotype came from genetic mutation studies conducted in the 1930’s-40’s 1941, The Beadle-Tatum experiment isolated nutritional genetic mutants in the mold Neurospora Neurospora can survive on minimal media: glucose, inorganic salts and biotin All other required nutrients (e.g., vitamins and amino acids) were hypothesized to be synthesized by genetically encoded enzymes They isolated mutants that could grow on vitamin supplemented media but not minimal media For example: if a spore can’t grow in minimal medium but can with supplemented pantothenic acid, they concluded an enzyme required for pantothenic acid production was missing They proposed the “one gene, one enzyme” This was later rephrased as the “one gene, one polypeptide” hypothesis after the discover
