Essentials of Genetics (9th Edition) - Standalone book
Essentials of Genetics (9th Edition) - Standalone book
9th Edition
ISBN: 9780134047799
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 13, Problem 21PDQ

A series of mutations in the bacterium Salmonella typhimurium results in the requirement of either tryptophan or some related molecule in order for growth to occur. From the data shown here, suggest a biosynthetic pathway for tryptophan.

Growth Supplement
Mutation Minimal
Medium
Anthranilic
Acid
Indole
Glycerol
Phosphate
Indole Tryptophan
trp-8 + + + +
trp-2 + + +
trp-3 + +
trp-1 +
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