Chapter 15 — LO 5 — Transcription Factors, Activators, and Repressors

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5 Terms

1
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What is a transcription factor?

A regulatory protein that influences transcription.

2
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What does an activator do?

Increases transcription by helping recruit or stimulate transcription machinery.

3
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What does a repressor do?

Decreases transcription by interfering with transcriptional activation.

4
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How can a distant enhancer influence a promoter?

DNA looping allows regulatory proteins at the enhancer to interact with promoter-associated proteins.

5
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Why are general transcription factors important?

They help assemble the transcription initiation complex and recruit RNA polymerase II.