Multiple choice

Which of the following does not define the transcription unit in a DNA?

  1. Terminator

  2. Promoter

  3. Intron

  4. Structural gene

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, it is correct. Introns are non-coding sections of an RNA transcript, or the DNA encoding it, which are spliced out before the RNA molecule is translated into a protein. The sections of DNA (or RNA) that code for proteins are called exons.

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