the ara operon is an inducible operon that controls the production of the sugar arabinose. when arabinose is present in a bacterium it binds to the protein arac, and the complex binds to the initiator site to promote transcription. in this scenario, arac is a(n) and arabinose is a(n) .

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21-10-2022
Biology

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the ara operon is an inducible operon that controls the production of the sugar arabinose. when arabinose is present in a bacterium it binds to the protein arac, and the complex binds to the initiator site to promote transcription. in this scenario, arac is a(n) and arabinose is a(n) .

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cenonjeric3 cenonjeric3 · Answer 1 · 2022-10-26T11:41:55-04:00

The ara operon is an inducible operon that controls the production of the sugar arabinose. When arabinose is present in a bacterium it binds to the protein AraC, and the complex binds to the initiator site to promote transcription. In this scenario, AraC is a(n) activator.

The process of transcription uses the DNA found in the nuceloids of bacteria cells to create messenger RNA. However, the generation of these mRNA is dependent on the intracellular state of the bacterium, such as whether or not the protein encoded by the segment is required.

Only when there is no arabinose sugar present in the cell can AraC function as a repressor in this particular bacteria. AraC will function as an activator in the aforementioned context since sugar arabinose is present.

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