Downloadable worksheets for AQA A Level Biology Gene expression is controlled by a number of features (A-level only), with answers included. Worksheets covering Most of a cell's DNA is not translated (A-level only), Regulation of transcription and translation (A-level only), and Gene expression and cancer (A-level only), matched to the AQA A Level Biology (7402) specification and suitable for A Level Biology. Print or work through on screen.