Online A Level Biology Easter Crash Courses
Join our 4-day online Easter Revision Courses (30th March-2nd April & 7th-10th April). Separate courses are available for AQA and OCR (A). Structured revision to boost confidence and exam technique. Book now.
Required practical 2: Preparation of stained squashes of cells from plant root tips; set-up and use of an optical microscope to identify the stages of mitosis in these stained squashes and calculation of a mitotic index.