Which of the Following Is the Best Description of an Operon

question 57

Multiple Choice

Which of the following is the best description of an operon?

• A) An enhancer that positively regulates gene expression.
• B) An silencer that negatively regulates gene expression.
• C) A binding element for the sigma (s) factor.
• D) A group of genes under the control of a common promoter.

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Definitions:

Longitudinal

A type of research study in which data is gathered from the same subjects repeatedly over a period of time.

Experimental

Pertaining to a methodological approach in research that involves manipulation of variables to determine cause-and-effect relationships.

Cross-Sectional

A research design that analyzes data from a population, or a representative subset, at a specific point in time.

Concrete Operations

A stage in Piaget's theory of cognitive development, typically occurring between ages 7 and 11, where children gain the ability to think logically about concrete events.