How Does the Concentration of Ribonucleotide Triphosphates Play a Role $\mu$

question 5

Multiple Choice

How does the concentration of ribonucleotide triphosphates play a role in the regulation of initiation?

• A)a high concentration of ATP is required to form the open-promoter complex
• B)high concentration of both ATP and GTP are required to form the open-promoter complex
• C)the single nucleotide binding site of RNA polymerase undergoes a conformational change after the first nucleotide to allow subsequent nucleotides to bind more readily
• D)binding of the first nucleotide requires a half-saturating concentration of ~100 \(\mu\)M while the half-saturating concentration for subsequent nucleotides is only ~10 \(\mu\)M
• E)none of the above

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Definitions:

Six-figure Accuracy

Precision that extends to six digits.

Overline

In mathematics, a line drawn over symbols to indicate that they are considered together, such as in the notation for a repeating decimal.

Denominator

The number under a division line in a fraction. The denominator is also known as the divisor.

Unknown Variable

A symbol in mathematics that represents a number or value which is not yet identified.