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/ 21 April 2005

Onions bring tears of joy

Slimy blobs of DNA extracted from an onion and floating in a test tube like tiny drifts of cloud evoke exclamations of delight from the group of 33 biology and natural science teachers – reminding them just why they had chosen the field of science. ‘It’s beautiful,” repeats Thomas Jafta, a biology teacher at Newlands […]