Question
Which of the following are the regions of transcription unit ?
A. A promoter
B. The structural gene
C. Introns
D. tRNA
E. A Terminator
Choose the correct answer from the options given below :
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
B, C, D only
Transcription Unit Regions Explained
The transcription unit is the fundamental DNA sequence transcribed into RNA. It comprises specific functional elements necessary for the process.
Identifying Transcription Unit Components
The question requires identifying the components that constitute a transcription unit from the given choices. According to the correct answer provided (Option C), the relevant regions are:
- B. The structural gene
- C. Introns
- D. tRNA
This selection focuses on the transcribed portion and related gene elements.
Detailed Component Analysis
A breakdown of why these components are considered part of the transcription unit in this context:
- Structural Gene: This is the core DNA sequence that codes for the RNA molecule (mRNA, tRNA, or rRNA) being synthesized.
- Introns: Within eukaryotic structural genes, introns are non-coding sequences that are transcribed into the initial RNA transcript but are later removed. They are integral parts of the transcribed sequence from the gene.
- tRNA: This option refers to the gene that encodes a transfer RNA (tRNA) molecule. tRNA genes are a type of structural gene, essential for protein synthesis.
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