Biology - Molecular Basis of Inheritance Question with Solution | TestHub
BiologyMolecular Basis of InheritanceTranscriptionEasy2 minPYQ_2026
BiologyEasysingle choice
A promoter in a transcription unit is a DNA sequence ________.
Options:
Answer:
B
Solution:
A promoter is a specific DNA sequence in a transcription unit that provides a binding site for RNA polymerase and transcription factors to initiate the process of transcription.
It is located towards the end (upstream) of the structural gene with respect to the coding strand.
The promoter itself is not transcribed into RNA, nor does it terminate transcription (which is the function of the terminator sequence). DNA polymerase binds to origins of replication during DNA replication, not to promoters during transcription.
Answer: that provides a binding site for RNA polymerase
Stream:MHT_CET_MEDICALSubject:BiologyTopic:Molecular Basis of InheritanceSubtopic:Transcription
⏱ 2mℹ️ Source: PYQ_2026
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