A series of mutations in a biosynthetic pathway of Salmonella result in the requ
ID: 41148 • Letter: A
Question
A series of mutations in a biosynthetic pathway of Salmonella result in the requirement of supplements to allow growth (+) as shown in the following table. What is the correct order for this synthesis pathway?
K ? X ? R ? M
R ? M ? K ? X
K ? M ? R ? X
R ? M ? X ? K
X ? K ? M ? R
Using the information in question 1; which of the following steps is regulated by the enzyme that is defective in Mutant 2?
R ? M
X ? K
K ? M
M ? R
M ? X
K ? R
M ? K
R ? X
a.)K ? X ? R ? M
b.)R ? M ? K ? X
c.)K ? M ? R ? X
d).R ? M ? X ? K
e).X ? K ? M ? R
Explanation / Answer
K ? M ? R ? X
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