What does an operon represent?

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Question

(A) An operon is a functional unit of $DNA$ containing a cluster of genes under the control of a single promoter. It typically consists of structural

Vedclass · Accepted Answer

Structural gene + promoter gene + operator gene

Vedclass · Answer

(A) An operon is a functional unit of $DNA$ containing a cluster of genes under the control of a single promoter. It typically consists of structural genes,an operator,and a promoter. While the regulatory gene is often associated with the operon,it is technically located outside the operon unit itself. However,in the context of standard multiple-choice questions,the structural genes,promoter,and operator are the core components. Since the provided options are limited,the most accurate description of the functional unit is the combination of structural genes,promoter,and operator. Given the options provided,there appears to be a slight discrepancy in terminology; however,option $A$ is the intended answer as it lists the primary components of the operon system.

Similar Questions

The activity of the structural gene is controlled by:

$A$ gene that is responsible for the synthesis of a polypeptide chain is called a .......

Statement-$I$: Lac operator is present only in lac operon and it interacts specifically with lac-repressor only.
Statement-$II$: Each operon has its specific operator and specific repressor.

Which of the following statements is incorrect regarding the $lac$ operon?

The switching on and off of the $lac$ operon is regulated by which of the following?

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