Escherichia coli is grown in the presence of 20 mg of glucose and 20mg of lactose as carbon sources. The major carbon source is consumed by Escherichia at a rate of 10 mg/hour. Which of the following best describes the actions of RNA polymerase, the promoter and the sugar being used after 3 hours? O The sugar binds to the repressor, inactivating it, allowing RNA polymerase to bind to the operator. O RNA polymerase binds to the promoter and the sugar binds to the operator. O The sugar binds to the repressor, inactivating it, and allows RNA polymerase to bind to the promoter. O The sugar binds to RNA polymerase and the repressor binds to a structural gene.

Escherichia coli is grown in the presence of 20 mg of glucose and 20mg of lactose as carbon sources. The major carbon source is consumed by Escherichia at a rate of 10 mg/hour. Which of the following best describes the actions of RNA polymerase, the promoter and the sugar being used after 3 hours? O The sugar binds to the repressor, inactivating it, allowing RNA polymerase to bind to the operator. O RNA polymerase binds to the promoter and the sugar binds to the operator. O The sugar binds to the repressor, inactivating it, and allows RNA polymerase to bind to the promoter. O The sugar binds to RNA polymerase and the repressor binds to a structural gene.

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Description: Escherichia coli is grown in the presence of 20 mg of glucose and 20mg of lactose as carbon sources. The major carbon source is consumed by Escherichia at a rate of 10mg/hour. Which of the following best describes the actions of RNA polymerase, the

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter14: Gene Regulation

Section: Chapter Questions

Problem 7TYU: Which of the following is characteristic of genes and gene regulation in both bacteria and...

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Which of the following statements about the control of genes involved in galactose metabolism in yeast is FALSE? Choose one of the answers below The genes coding for enzymes acting in the gal system are organized in an operon. The system involves a transcription activator. The system involves a transcription repressor. The presence of galactose sequesters the repressor in the cytoplasm. none of the above
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