An active repressor protein:.a. is a structural protein. b. binds to the DNA molecule and promotes transcription initiation. c. binds to the DNA molecule and prevents transcription. d. binds to the RNA polymerase, preventing messenger RNA synthesis. e. binds to an inducer to activate it.

e. binds to an inducer to activate it.

Explanation:

An active repressor binds to the operator (operon) to either block or start transcription. Some of these proteins are needed routinely, while others are needed only under certain circumstances. For instance, lactose in the lac operon will turn the gene off if the active repressor protein binds to it.

answer: i don't know

explanation:

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c. live where it’s cold and icy