Which of the Following Correctly Describes the Activity or Regulation

question 17

Multiple Choice

Which of the following correctly describes the activity or regulation of E coli ribonucleotide reductase?

• A)the overall activity of the enzyme is controlled by ATP and dATP
• B)the specificity of the enzyme is controlled by all four dNTPs
• C)a tyrosine free radical participates in the reaction
• D)the reduction is not a result of simple hydride transfer
• E)all of the above

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Definitions:

Weight Reaches

A term referring to the point at which an individual or object attains a particular weight.

Integumentary System

The largest organ system by surface area, comprising skin, hair, nails, and sweat glands and their products (sweat and mucus). It distinguishes, separates, and protects. The name derives from the Latin integumentum, which means “a covering.”

Vomiting

The forceful expulsion of the contents of one's stomach through the mouth, often a symptom of illness or distress.

Pregnancy

The condition of carrying one or more offspring inside the womb of a female, from conception until birth.