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Not so Hardy-Weinberg

Mind the gap

How nerve cells communicate

Neuroscientist Helena Bailes explains how our nervous system solves the problem of transmitting electrical signals from one nerve cell to the next, and how this helps our brains to process information

Figure 1 A typical neurone. Dendrites receive information from other neurones. Action potentials travel down the axon to the terminals. The myelin sheath is made of fat and helps to insulate signals travelling down the axon

Neurone

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Not so Hardy-Weinberg

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