Biology A-Level
abnormal methylation
What abnormal methylation means in Biology A-Level, as defined for AQA.
Definition of abnormal methylation
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Reference: AQA
Hypermethylation of a tumour suppressor gene's promoter prevents its transcription, while reduced methylation of an oncogene increases it.
Topics that use abnormal methylation
- Gene expression and cancer (A-level only) (AQA A-Level)
Related terms
Using abnormal methylation in the exam
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