Sydney Brenner isolated Salmonella typhimurium mutants that were implicated in the biosynthesis of tryptophan and would not grow on minimal medium. When these bacterial mutants were tested on minimal medium to which one of four compounds (indole glycerol phosphate, indole, anthranilic acid, and tryptophan) had been added, the growth responses shown in the following table were obtained. Mutant Minimal medium Anthranilic Indole glycerol acid Indole Tryptoph phosphate trp-1 trp-2 trp-3 trp-4 trp-6 trp-7 trp-8 trp-9 trp-10 trp-11 - Give the order of indole glycerol phosphate, indole, anthranilic acid, and tryptophan in a biochemical pathway leading to the synthesis of tryptophan. Indicate which step in the pathway is affected by each of the mutations. + 1 + 1 II
Sydney Brenner isolated Salmonella typhimurium mutants that were implicated in the biosynthesis of tryptophan and would not grow on minimal medium. When these bacterial mutants were tested on minimal medium to which one of four compounds (indole glycerol phosphate, indole, anthranilic acid, and tryptophan) had been added, the growth responses shown in the following table were obtained. Mutant Minimal medium Anthranilic Indole glycerol acid Indole Tryptoph phosphate trp-1 trp-2 trp-3 trp-4 trp-6 trp-7 trp-8 trp-9 trp-10 trp-11 - Give the order of indole glycerol phosphate, indole, anthranilic acid, and tryptophan in a biochemical pathway leading to the synthesis of tryptophan. Indicate which step in the pathway is affected by each of the mutations. + 1 + 1 II
Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 8.1P
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Transcribed Image Text:Sydney Brenner isolated Salmonella typhimurium mutants that were
implicated in the biosynthesis of tryptophan and would not grow on
minimal medium. When these bacterial mutants were tested on minimal
medium to which one of four compounds (indole glycerol phosphate,
indole, anthranilic acid, and tryptophan) had been added, the growth
responses shown in the following table were obtained.
Mutant
Minimal
medium
Anthranilic Indole glycerol
acid
Indole Tryptoph
phosphate
trp-1
trp-2
trp-3
trp-4
trp-6
trp-7
trp-8
trp-9
trp-10
trp-11 -
Give the order of indole glycerol phosphate, indole, anthranilic acid, and
tryptophan in a biochemical pathway leading to the synthesis of
tryptophan. Indicate which step in the pathway is affected by each of the
mutations.
+ 1 + 1 II
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