You Are Examining an Enzyme Associated with Cysteine Biosynthesis

question 1

Multiple Choice

You are examining an enzyme associated with cysteine biosynthesis.You would expect expression of the enzyme to be

• A)amplified when cysteine concentrations are high.
• B)induced by cysteine.
• C)repressed by cysteine.
• D)high when ATP concentrations in the cell are low.
• E)controlled by a riboswitch.

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