Biology - Molecular Basis of Inheritance Question with Solution | TestHub
BiologyMolecular Basis of InheritanceRegulation of Gene ExpressionEasy2 minPYQ_2026
BiologyEasysingle choice
In lactose operon ofE. coli, what is the function of promoter?
Options:
Answer:
B
Solution:
In the lactose operon ofE. coli, the promoter is a specific DNA sequence located upstream of the structural genes.
Its primary function is to provide a binding site for RNA polymerase, which is the enzyme responsible for initiating the transcription of the operon into mRNA.
Therefore, the promoter facilitates the binding of RNA polymerase.
Answer: Binding of RNA polymerase
Stream:MHT_CET_MEDICALSubject:BiologyTopic:Molecular Basis of InheritanceSubtopic:Regulation of Gene Expression
⏱ 2mℹ️ Source: PYQ_2026
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