If

question 63

Multiple Choice

If

• A)the repressor will NOT bind the operator,thus allowing transcription of the lac operon genes.
• B)the repressor will bind the operator,thus allowing transcription of the lac operon genes.
• C)the repressor will NOT bind the operator,thus preventing transcription of the lac operon genes.
• D)the repressor will bind the operator,thus preventing transcription of the lac operon genes.
• E)coli bacterium are grown in the absence of lactose

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Definitions:

Intestinal Epithelium

The intestinal epithelium is the layer of cells that line the interior surface of the intestines, playing crucial roles in nutrient absorption, secretion, and barrier protection.

Digestive Tract

A continuous tube through which food enters the body and is broken down into nutrients, which are absorbed, with the waste expelled.

Peristalsis

A series of wave-like muscle contractions that moves food to different processing stations in the digestive tract.

Muscular Contractions

The process where muscle fibers shorten or increase in tension, leading to movement or stabilization of body parts.