DNA transcription (advanced detail)


The process of copying DNA into messenger RNA (mRNA) is called transcription. Transcription factors assemble at the promoter region of a gene, bringing an RNA polymerase enzyme to form the transcription initiation complex. Activator proteins at the enhancer region of DNA then activate the transcription initiation complex. RNA polymerase unzips a small portion of the DNA and copies one strand into an mRNA molecule.

(Duration: 01 min 55 sec)
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Curriculum Connections:

  • AP Biology (2012-2013) - 6
  • IB Biology (2016) - 8
  • NGSS (2013) LS - 2
AP Biology (2012-2013)
1.B.1.a, 3.A.1.a, 3.A.1.b, 3.A.1.c, 4.A.1.a, 4.A.1.b
IB Biology (2016)
2.1, 2.3, 2.4, 2.6, 2.7, 7.1, 7.2, 7.3
NGSS (2013) LS
HS-LS1-1 (LS1.A), HS-LS4-1 (LS4.A)