Question

Which one of the following is not a part of a transcription unit in DNA?

• A. The inducer
• B. A terminator
• C. A promoter
• D. The structural gene

Answer 1

Answer: (A)

The inducer

Transcription of DNA results in a mRNA encoding at least one gene. The mRNA however, serve as a template for protein synthesis through translation. Transcription unit is a specific section of DNA which is transcribed into mRNA. The transcription unit has three main parts;a promoter, a structural gene and a terminator. Thus, the correct answer is option A.