NEET 2024 · Class 12

Molecular Basis of Inheritance

A transcription unit in DNA is defined primarily by the three regions in DNA and these are with respect to upstream and down stream end;

  1. (A)Repressor, Operator gene, Structural gene
  2. (B)Structural gene, Transposons, Operator gene
  3. (C)Inducer, Repressor, Structural gene
  4. (D)Promotor, Structural gene, Terminator

The NCERT line that answers it

Verbatim line

A transcription unit in DNA is defined primarily by the three regions in the DNA:

Chapter
Molecular Basis of Inheritance
Section
5.5.1 Transcription Unit
Page
12
Words matched
25 of 25

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'A transcription unit in DNA is defined primarily by the three regions in the DNA: (i) A Promoter (ii) The Structural gene (iii) A Terminator', which directly matches and proves option D as correct.

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