In a Hypothetical Bacterial Operon, Genes A, C, and D

question 84

Short Answer

In a hypothetical bacterial operon, genes A, C, and D are expressed when "substance r" is present but not when it is absent.Mutations in gene A cause protein 1 not to be produced, but they only affect production of protein 1.Mutations in gene C cause protein 2 not to be produced.Mutations in gene D cause protein 3 not to be produced.Gene B, which has been shown to be near the other genes, does not code for a protein.Mutations in gene B cause genes A, C, and D to be expressed all the time regardless of the presence or absence of substance r.Gene E produces protein 4.Mutations in gene E (which is not near A, B, C, or D) cause genes A, C, and D to be expressed all the time regardless of the presence or absence of substance r.Is this an inducible or repressible operon?

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Definitions:

Case Study Method

A research strategy that involves an in-depth investigation of a single subject, group, or event to explore causation and find underlying principles.

Neurotics

individuals experiencing neurosis, showing symptoms of stress, anxiety, and obsessive behavior without a break from reality.

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A treatment approach where the patient undergoes intervention with minimal active effort or participation, often relying on external actions.

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Relating to the ability to think and understand ideas and information at a high level of complexity.