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Besides the lac operon, which other operons are subject to catabolite repression?

Question

Besides the lac operon, which other operons are subject to catabolite repression?

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Solution

Catabolite repression is a regulatory mechanism in bacteria where the presence of a preferred energy source (usually glucose) inhibits the use of other energy sources. Besides the lac operon, other operons that are subject to catabolite repression include:

  1. The ara operon: This operon is responsible for the metabolism of arabinose when glucose is not available. When glucose is present, the ara operon is repressed.

  2. The gal operon: This operon is responsible for the metabolism of galactose. It is also subject to catabolite repression in the presence of glucose.

  3. The maltose operon: This operon is responsible for the metabolism of maltose. It is repressed in the presence of glucose.

  4. The rhamnose operon: This operon is responsible for the metabolism of rhamnose. It is also subject to catabolite repression when glucose is present.

  5. The melibiose operon: This operon is responsible for the metabolism of melibiose. It is repressed in the presence of glucose.

These are just a few examples. Many other operons in bacteria are also subject to catabolite repression. The exact mechanisms of catabolite repression can vary between different operons and bacterial species.

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Similar Questions

Besides the lac operon, which other operons are subject to catabolite repression?Select your answer:Select your answerOPTION ALTERNATIVE Those involved in DNA replication. Those involved in protein degradation. Those involved in catabolism. Those involved in lipid synthesis.

The lac operon is expressed when

The inducer of the lac operon is lactose.

Which of the following is the inducer of the lac operon in cells? Group of answer choiceslactose allolactosegalactoseglucoseisopropylthiogalactopyranoside

8. The lac operon, when using lacl, is regulated by a(n)a) activator and inducerc) activator and co-repressorb) repressor and inducerd) repressor and co-repressor

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