DNA is the blueprint and genetic guide for every living thing, and units of DNA are tiny. So how can we see it with our own eyes? Many DNA units form a long, stringy molecule that is easily visible and easy to extract from particular living things, like peas or a banana.
Safety: This activity uses a sharp knife and a blender. Handle ethanol according to the label. If you try this activity yourself, ask an adult to supervise.
Our latest video shows you how to extract DNA from a banana. Check it out:
Video transcript available here.
A plant cell. To release the DNA we need to get through three barriers: the cell wall, the cell membrane, and the nuclear membrane.
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