A protein that binds to the operator and blocks the RNA polymerase
AP Biology Review Topic 6.6 Gene Expression, Cell Specialization

Flashcard
•
Biology
•
11th Grade
•
Hard
Mario Padilla
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28 questions
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1.
FLASHCARD QUESTION
Front
Back
repressor protein
2.
FLASHCARD QUESTION
Front
What is the name of the stretch of DNA on an operon where RNA polymerase binds to initiate transcription?
Back
promoter
3.
FLASHCARD QUESTION
Front
A distal control region that activators bind to are bent to contact mediator proteins and form the transcription initiation complex.
Back
enhancers
4.
FLASHCARD QUESTION
Front
In eukaryotes, proteins that help the RNA polymerase bind to the promoter for transcription
Back
transcription factors
5.
FLASHCARD QUESTION
Front
How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though they look and perform completely different?
Back
The proteins expressed in each cell are different.
6.
FLASHCARD QUESTION
Front
What does the inducer molecule do in an inducible operon?
Back
It binds to the repressor protein allowing transcription to occur.
7.
FLASHCARD QUESTION
Front
A chemical modification of DNA that does not affect the nucleotide sequence of a gene but makes that gene less likely to be expressed.
Back
methylation
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