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Waves and patterning in developmental biology: vertebrate segmentation and feather bud formation as case studies

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Figure

Fig. 1. Schematic illustration of the vertebrate body plan during somitogenesis. The top part of theis fixed by the level of the determination front at the time at which cells at the anterior boundary becomeclock
Fig. 2. Schematic illustration of the processes involved in feather bud formation. factors (red) recruit more cells into each aggregate whilst inhibiting factors (green) stop aggregates from becoming too large
Fig. 3. Schematic illustration of the interactions between activator (u) and inhibitor(v)
Fig. 4. Numerical solution of a reaction-diffusion model in one spatial dimension. Small initial fluctuations in an otherwise homogeneous systemare amplified into a series of peaks and troughs in chemical concentration
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