The chick embryo proper comes from a very small region resting on the yolk.

小鸡胚胎本身来自于蛋黄上的一个非常小的区域。

youdao

The recipe is a combination of three small molecules and five proteins, and it attempts to replicate what cells would experience in the developing embryo.

此方剂是三种小分子和五种蛋白质的组合，它试图复制细胞在发育中的胚胎里所要经历的事情。

youdao

Embryo cells are small, chromatin is dense, have already differentiation on epidermis, cortex and central cylinder.

胚已经具有了表皮、皮层、中柱的分化，细胞小，染色质浓厚。

youdao

However, Dr Taranissi said genetic screening did carry a small risk to the embryo, and would only be used on women who were thought to be at high risk.

BBC: Embryo gene testing approved

For supporters of embryo research the creation of hybrid embryos is a small but significant move forward.

BBC: UK's first hybrid embryos created