Poppit beads 4 colours-blue
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A set of coloured beads that can be designated to represent the Watson-Crick DNA bases (A, T, G, C). The beads can be used in a variety of ways to demonstrate concepts related to the structure and biology of DNA. Includes detailed outline of various sample demonstrations. In packs of 150. Dia. approx. 11.5mm. Hole dia. approx. 3.5mm