Describe the Differences Between Inducible and Repressible Operons

question 43

Essay

Describe the differences between inducible and repressible operons. How does attenuation differ from inducible repressible operons?
Would the lac operon be active if a cell has the following food sources?
a. only lactose
b. only glucose
c. lactose and glucose

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Definitions:

Mandible

The lower jaw or jawbone, significant in the structure of the face and in the process of chewing.

Trapezius Muscle

A large superficial muscle that extends from the occipital bone to the lower thoracic vertebrae and to the scapular spine, involved in moving the shoulder blade and supporting arm movements.

Intercostal Space

An anatomical term referring to the space located between two ribs, through which nerves and blood vessels run.

Midclavicular Line

An imaginary vertical line passing through the midpoint of the clavicle in each half of the human body.