NEET 2026
- Exam
- NEET
- Year
- 2026
- Subject
- Zoology
- Chapter
- Molecular Basis of Inheritance
NEET 2026 · Zoology · Molecular Basis of Inheritance
Which of the following statements are correct with reference to a...
Which of the following statements are correct with reference to a transcription unit ?
A. A transcription unit in DNA is defined primarily by three regions : promoter, structural gene and terminator.
B. The promoter is said to be located towards the -end of the structural gene.
C. The promoter is a DNA sequence that provides binding site for RNA polymerase.
D. The promoter defines the template and coding strands.
E. The terminator is located towards the -end of the coding strand and it defines the end of the process of transcription.
Choose the correct answer from the options given below :
A. A transcription unit in DNA is defined primarily by three regions : promoter, structural gene and terminator.
B. The promoter is said to be located towards the -end of the structural gene.
C. The promoter is a DNA sequence that provides binding site for RNA polymerase.
D. The promoter defines the template and coding strands.
E. The terminator is located towards the -end of the coding strand and it defines the end of the process of transcription.
Choose the correct answer from the options given below :
Options
- AA, B, C and D only
- BA, C, D and E only
- CB, C, D and E only
- DA, B, C, D and E
Correct answer
D. A, B, C, D and E
Step-by-step solution
Statement A is correct as a transcription unit in DNA is primarily defined by three regions: a promoter, a structural gene, and a terminator.
Statement B is correct because the promoter is located towards the -end (upstream) of the structural gene, with reference to the polarity of the coding strand.
Statement C is correct as the promoter is a specific DNA sequence that provides a binding site for RNA polymerase to initiate transcription.
Statement D is correct because the presence and position of the promoter in a transcription unit define which strand acts as the template and which as the coding strand.
Statement E is correct as the terminator is located towards the -end (downstream) of the coding strand and marks the end of the transcription process.
Since all statements A, B, C, D, and E are correct, the correct option includes all of them.
Answer: A, B, C, D and E
Statement B is correct because the promoter is located towards the -end (upstream) of the structural gene, with reference to the polarity of the coding strand.
Statement C is correct as the promoter is a specific DNA sequence that provides a binding site for RNA polymerase to initiate transcription.
Statement D is correct because the presence and position of the promoter in a transcription unit define which strand acts as the template and which as the coding strand.
Statement E is correct as the terminator is located towards the -end (downstream) of the coding strand and marks the end of the transcription process.
Since all statements A, B, C, D, and E are correct, the correct option includes all of them.
Answer: A, B, C, D and E