Structure of a transcription unit

2026 1 question

1. Which of the following statements are correct with reference to a transcription unit? I. A transcription unit in DNA is defined primarily by three regions: promoter, structural gene and terminator. II. The promoter is said to be located towards the 5'-end of the structural gene. III. The promoter is a DNA sequence that provides binding site for RNA polymerase. IV. The promoter defines the template and coding strands. V. The terminator is located towards the 3'-end of the coding strand and it defines the end of the process of transcription. Choose the CORRECT answer from the options given below: