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mieka mieka
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11 years ago
Explain how transcription factors can control gene expression.
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11 years ago
Transcription yields mRNA from DNA, and translation yields polypeptides from mRNA. You could consider posttranslational modification as necessary to truly complete the process, if you like.

Transcription factors control the frequency with which a particular portion of the genome is transcribed by controlling the affinity of that portion for polymerases.
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