If you have ever taken cuttings from a plant and used them to grow new plants, you have made clones. Potatoes are one of the most familiar crops routinely grown from clones, which are usually described as genetically identical plants (but see later). Researchers and suppliers of rare or valuable plants use techniques that are rather more sophisticated than detaching a seed potato.
1 Surface sterilise the plant tissue and, using aseptic technique (see Figure 1), cut out a small piece of tissue from the plant (an explant).
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