decreased histone acetylation
What decreased histone acetylation means in Biology A-Level, as defined for AQA.
Definition of decreased histone acetylation
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Reference: AQA
Acetyl groups are removed from the histones by histone deacetylase, the histones become more positively charged, bind the negatively charged DNA more strongly, the chromatin condenses and RNA polymerase cannot reach the promoter.
Topics that use decreased histone acetylation
Related terms
- complementary base pairing
- correlation not causation
- DNA methylation
- environment and gene expression
- genotype versus environment
- histone acetylation
- hypermethylation of tumour suppressor genes
- increased DNA methylation
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