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3.8 The control of gene expression
Quick questions on Epigenetic control of gene expression - AQA A-Level Biology 3.8
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Explain why decreased acetylation of histones reduces transcription. [3 marks]
What is q2?Show answer
A drug reduces methylation of the promoter of a tumour suppressor gene. Suggest how this could help treat cancer. [2 marks]
What is q3?Show answer
Give one piece of evidence that an observed difference in gene expression is epigenetic rather than genetic. [1 mark]
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