Question

Which DNA sequence element is located at the 3' end of a transcription unit and signals the termination of transcription?

Options

• Structural Gene

• Promoter

• TATA box

• Terminator

Answer 1

The Terminator is a DNA sequence located at the 3' end (downstream) of the transcription unit. It is often palindromic in structure and signals the end of transcription, causing RNA polymerase to dissociate from the DNA template.