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:

Surgi-Centers

Specialized healthcare facilities focused on providing outpatient surgical care, including diagnostic and preventive procedures that do not require hospital admission.

Urgi-Centers

Healthcare facilities that provide immediate, non-emergency medical care without the need for an appointment, often more accessible than hospital emergency rooms.

Reimbursement System

A mechanism by which healthcare providers receive payments from insurers or patients for the services they have rendered.

For-Profit Ethics

Ethical considerations and practices applied within for-profit business operations, focusing on moral conduct in the pursuit of financial gain.