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Questions and Answers
What effect does methylation have on chromatin structure?
What effect does methylation have on chromatin structure?
- Recruits bromodomain proteins to maintain euchromatin conformation
- Neutralizes the positive charge of lysine
- Contributes to heterochromatin conformation (correct)
- Reduces histone-DNA interactions
How does acetylation influence gene expression?
How does acetylation influence gene expression?
- Neutralizes the positive charge of lysine
- Reduces histone-DNA interactions
- Recruits chromodomain proteins that condense chromatin
- Facilitates transcription (correct)
What is the role of histone acetyl transferases (HATs) in histone modification?
What is the role of histone acetyl transferases (HATs) in histone modification?
- Maintain heterochromatin conformation
- Add acetyl groups to lysine residues (correct)
- Recruit chromodomain proteins
- Remove acetyl groups from lysine residues
Which modification allows promoter regions to be accessible for RNA polymerase?
Which modification allows promoter regions to be accessible for RNA polymerase?
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How do histone deacetyl transferases (HDACs) contribute to gene regulation?
How do histone deacetyl transferases (HDACs) contribute to gene regulation?
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Which protein is recruited by methylation to further condense the chromatin?
Which protein is recruited by methylation to further condense the chromatin?
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In what way does acetylation influence histone-DNA interactions?
In what way does acetylation influence histone-DNA interactions?
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Which process is associated with euchromatin conformation?
Which process is associated with euchromatin conformation?
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How does phosphorylation contribute to chromatin structure?
How does phosphorylation contribute to chromatin structure?
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