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Anonymous
Anonymous asked in Science & MathematicsBiology · 1 month ago

please help? ?

Wild-type bacteria can grow on minimal medium. Four mutants that cannot grow on minimal medium but can grow on minimal medium supplemented with the nutrient "H" are isolated. It is suspected that metabolites T, P, and A are in the biochemical pathway for synthesis of H, so each mutant is tested for the ability to grow on minimal medium supplemented with these metabolites:

A. Mutant 1: can grow on minimal medium supplemented with T, but not P or A

B. Mutant 2: is unable to grow on minimal medium supplemented with T, P, or A

C. Mutant 3: is able to grow on minimal medium supplemented with A or T, but not P

D. Mutant 4: can grow on minimal medium supplemented with T, P, or A.

Which of the following is NOT consistent with this information?

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  • 1 month ago
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    You didn't give the choices here. 

    From the information you've provided, the metabolic pathway for the synthesis of H is:

    P-->A-->T-->H

    Mutant 1 has a mutation in the enzyme that converts A into T

    Mutant 2 has a mutation in the enzyme that converts T into H

    Mutant 3 has a mutation in the enzyme that converts P into A

    and Mutant 4 has a mutation in some enzyme involved in forming P

    Hope that helps...

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