Biology A-Level
epigenetic silencing
What epigenetic silencing means in Biology A-Level, as defined for AQA.
Definition of epigenetic silencing
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Reference: AQA
The process by which parts of the genome are switched off, so progressively fewer genes remain available for expression and potency becomes restricted.
Topics that use epigenetic silencing
- Most of a cell’s DNA is not translated (A-level only) (AQA A-Level)
Related terms
- cell specialisation
- cellular differentiation
- differentiation
- immune rejection and antigens
- induced pluripotency
- loss of potency
- pluripotent
- promoter region
Using epigenetic silencing in the exam
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