Illustrate and Explain an Operon That Is Subject to Both

question 22

Essay

Illustrate and explain an operon that is subject to both positive and negative control containing the operator region,the operon,the promoter,the activator binding site,and the functional genes in a DNA sequence.Also compare and contrast the roles activators and repressors have in regulating the illustrated operon.

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Definitions:

Concurrent Validity

A measure of how well a particular test correlates with a previously validated measure taken at the same time.

Construct Validity

The extent to which a test or measurement tool accurately measures the theoretical construct it is intended to measure.

Content Validity

The extent to which a test measures all aspects of the concept it intends to measure.

Predictive Validity

The extent to which a test or measure accurately predicts future performance or outcomes.