在1912年，他从鸡的胚胎心脏中取出一些细胞组织置于培养基中，这些组织仍然能够继续存活并生长。
In 1912 he took some tissue from the heart of an embryo chick and placed it in a culture medium. It is living and growing yet.
现在，一份对鸡胚胎的研究，鸟类的翅膀的趾中确实有类似于人类拇指、食指和中指的趾的分化。
Now, a study of chick embryos shows that birds do indeed have thumb, index, and middle "fingers" in their wings.
将上述定位的鸡的20个功能基因的BAC克隆分别与利用胚胎成纤维细胞制备的鸭和鸵鸟的中期染色体杂交。
The above BAC clones of 20 chicken genes were hybridized by FISH with duck and ostrich metaphase chromosomes prepared from embryo fibroblasts.
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