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Developmental biology

Making progress with limb models

What is the developmental mechanism that makes our upper arms different from our forearms or fingers? Two new papers challenge an influential and popular model, and propose an alternative view.

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Figure 1: Developing limbs.


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Correspondence to Denis Duboule.

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Duboule, D. Making progress with limb models. Nature 418, 492–493 (2002).

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