鸸鹋是一种大型的澳大利亚不会飞的鸟，类似于鸵鸟，但是有三趾的脚和灰色或棕色的羽毛。
Emu is a large Australian flightless bird, similar to the ostrich but with three-toed feet and grey or brown plumage.
对控制多趾的相关基因及其分子机制进行研究，有利于我们深入了解多指（趾）畸形的形成机制，揭示肢体发育的过程和机理。
Study the genes of polydactyly and molecular mechanism can help us to know how limbs form and reveal the producing process of limbs.
这样“组织者”细胞群就可以对最终形成趾的骨骼的数量和形状进行控制。
This allows the organizer to control the number and shape of the bones that ultimately make up a digit.
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