These coloured poppit beads can be used to represent the Watson-Crick DNA bases (A, T, G, C). The beads, which can be push-fit together and pulled apart, can be used in a variety of ways to demonstrate concepts related to the structure and biology of DNA. Available as individual colours in packs of 150 beads (red, blue, green and yellow) or as a mixed pack of 600 beads (150 of each colour).
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