Which Pair Is NOT Matched Correctly?
A) NtrC-Regulates Nitrogenase Gene $\sigma$

question 47

Multiple Choice

Which pair is NOT matched correctly?

• A) NtrC-regulates nitrogenase gene expression in response to NH₄⁺ concentration
• B) NtrB-phosphorylates NtrC when NH₄⁺ concentration is low
• C) NifL-forms a two-component signal transduction system with NtrC
• D) NifA-acts in concert with factor \(\sigma\)-54
• E) none of the above

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Definitions:

Production Stable

A situation in manufacturing where the production process is consistent, reliable, and capable of meeting expected demand without significant fluctuations.

Forward Buying

The practice of purchasing stock in larger quantities than needed immediately to take advantage of lower prices or anticipated price increases.

Peak Period

The time when demand for goods or services is at its highest, often leading to increased prices and competition.

Time Flexibility

The ability to adapt to changes in scheduling or deadlines.