The Promoters of Positively Controlled Operons Require Activator Proteins,because

question 76

Multiple Choice

The promoters of positively controlled operons require activator proteins,because

• A) RNA polymerase easily recognizes the consensus sequence.
• B) they are required to inactivate the repressor proteins.
• C) the promoters have nucleotide sequences that bind RNA polymerase weakly, which are not close matches to the consensus sequence.
• D) they are needed to bind to the allosteric site of RNA polymerase.

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Definitions:

Variable Cost

A cost that varies with the level of output, including expenses such as materials and labor directly tied to the production volume.

Units Sold

The cumulative amount of a product sold over a designated time frame.

Period Costs

Expenses that are not directly tied to production and are accounted for in the period in which they are incurred, such as selling and administrative expenses.

September

The month that appears as the ninth in the sequence of months in the Gregorian calendar.