Transcriptional regulators bind most frequently at the _______

Transcriptional regulators bind most frequently at the ________ site of DNA.

A) major groove
B) minor groove
C) histone complex
D) primary supercoil

When arginine is added to a culture growing exponentially in a medium without arginine, what occurs?

A) All cellular growth ceases.
B) Growth continues, but the production of enzymes required for the synthesis of arginine ceases.
C) Growth continues, but the production of enzymes required for the synthesis of arginine increases.
D) The cell returns to the lag stage of growth to synthesize the proteins necessary for the metabolism of arginine.

A protein region with a specific function and structure is called a

A) conserved site.
B) domain.
C) locale.
D) motif.

Regulatory proteins

A) are influenced by small molecules.
B) bind to specific DNA sites.
C) regulate transcription.
D) regulate transcription, bind specific DNA sites, and can be influenced by small molecules.

Regulation of an enzyme's activity occurs

A) transcriptionally.
B) translationally.
C) posttranslationally.
D) at any point on the enzymatic production pathway.

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Transcriptional regulators bind most frequently at the ________ site of DNA.

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