Figure 10-6. Transcription of two genes.

Figure 10-6

Transcription of two genes. (a) RNA polymerase moves from the 3′ end of the template strand, creating an RNA strand that grows in a 5′ → 3′ direction (because it must be antiparallel to the template strand). Note that some genes are transcribed from one strand of the DNA double helix; other genes use the other strand as the template. (b) A uracil is being added to the 3′ end of the transcript for gene 1. Growth is thus 5′ → 3′.

Transcription (MOV, 16M)

From: Transcription and RNA polymerase

Cover of An Introduction to Genetic Analysis
An Introduction to Genetic Analysis. 7th edition.
Griffiths AJF, Miller JH, Suzuki DT, et al.
New York: W. H. Freeman; 2000.
Copyright © 2000, W. H. Freeman and Company.

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