) Anthranilate fluoresces blue under ultraviolet light. Under normal conditions, the levels of anthranilate in bacterial cells are low and the cells do not visibly fluoresce. However, if anthranilate accumulates because a relevant enzyme is defective or absent, the cells will fluoresce.
The table below lists several enzymes in the tryptophan biosynthetic pathway. Each row corresponds to a different bacterial strain. A “+” in the table indicates that the gene for that enzyme is functional in that strain. A “-“ in the table indicates that the gene for that enzyme is non-functional in that strain. For each strain, indicate whether or not you would expect to see blue fluorescence under ultraviolet light.
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If you are taking Lander's testin edx, the answers are no no yes no yes
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