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Question
An operon is a ______.
Options
Protein that suppresses gene expression.
Protein that accelerates gene expression.
Cluster of structural genes with related function.
Gene that switches other genes on or off
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Solution
An operon is a cluster of structural genes with related functions.
Explanation:
An operon is a functional unit of DNA that contains a cluster of genes that are transcribed together into a single mRNA strand. This arrangement allows the cell to regulate a set of proteins with related metabolic functions, such as the enzymes needed to break down lactose, simultaneously. It typically consists of a promoter, an operator, and the structural genes themselves.
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RELATED QUESTIONS
List two essential roles of ribosomes during translation.
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