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:

Facebook Drones

Unmanned aerial vehicles developed by Facebook (now Meta) aimed at providing internet access to remote areas by flying at high altitudes.

Wingspan

The measure of distance from one wingtip of an animal or aircraft to the other; in business, it can metaphorically refer to the reach or spread of a company's influence.

Altitudes

The height of an object or point in relation to sea level or ground level.

GEO

Short for Geostationary Earth Orbit, a circular orbit 35,786 kilometers above the Earth's equator where a satellite's orbital period matches the Earth's rotation, appearing stationary to an observer on Earth.