Operon is a

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(B) An operon is a functional unit of $DNA$ containing a cluster of genes under the control of a single promoter.It consists of structural genes,an op

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set of closely placed genes regulating a metabolic pathway in prokaryotes.

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(B) An operon is a functional unit of $DNA$ containing a cluster of genes under the control of a single promoter.It consists of structural genes,an operator,and a promoter.Operons are primarily found in prokaryotes,where they regulate metabolic pathways by coordinating the expression of genes involved in the same process.Therefore,it is a set of closely placed genes regulating a metabolic pathway in prokaryotes.

Column-$I$	Column-$II$
$(i)$ Operator site	$(a)$ Codes for enzyme (protein)
$(ii)$ Promoter site	$(b)$ Codes for repressor
$(iii)$ Structural gene	$(c)$ Binding site for $RNA$ polymerase
$(iv)$ Regulator gene	$(d)$ Binding site for repressor

Similar Questions

In $lac$ operon,the gene '$i$' codes for repressor protein,the letter '$i$' indicates . . . . . . .

Define the following terms: Regulator gene and Promoter gene.

Match Column-$I$ with Column-$II$:

Column-$I$ Column-$II$

$(i)$ Operator site $(a)$ Codes for enzyme (protein)

$(ii)$ Promoter site $(b)$ Codes for repressor

$(iii)$ Structural gene $(c)$ Binding site for $RNA$ polymerase

$(iv)$ Regulator gene $(d)$ Binding site for repressor

Select the $correct$ match:

Write an explanatory note on gene expression.

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