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4.11: Gene Expression

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

TermDefinition
activator Regulatory protein that enhances the interaction between RNA polymerase and a particular promoter.
cis-regulatory element Regulatory segment of DNA; site where a transcription factor may bind.
enhancer Sites on the DNA strand that are bound by activators; brings a transcription factor to the initiation complex.
initiation complex Complex composed of RNA polymerase and transcription factors; needed for transcription to begin.
regulatory protein DNA-binding protein that regulates gene expression.
repressor Proteins that bind to non-coding sequences on DNA that are close to the promoter region; impedes RNA polymerase's progress along the strand.
transcription factor A DNA-binding protein involved in regulating gene expression.

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Difficulty Level:
At Grade
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Date Created:
Feb 24, 2012
Last Modified:
Aug 28, 2016
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SCI.BIO.329.1.L.1