PowerPoint on selection at AS level, Includes an introduction to the work of Florey, Chain and Heatley on the development of penicillin and links this to (earlier year 1 material about) prokaryotes. There's a card sort activity, which students match up with numbers associated with images of antibiotic resistance which is used to and illustrate directional selection. Stabilising selection is exemplified by human birth weights. The PPT contains notes with most of the answers to the questions on the PPT. This resource is designed to be used with the class notes for this topic. There's also a very quick meiosis quiz included for a recap.
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£7.00