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Have you ever sat in a garden or park and noticed all the different colours in plants? In this activity, you can dig deeper into nature’s colours and find out the variety of pigments that give each plant their unique colours.

Welcome to Double Helix magazine’s Q&A section – Microscope. We take a close look at small questions full of big ideas. Q: What makes some plants have purple leaves? The Helix reader, Sudashree from South Australia