In combination with morphological and structural analysis, it indicated that these specific proteins may be relevant to embryo formation and development.

结合形态与结构分析，表明差异蛋白质可能与体细胞胚的发生和发育相关。

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A cascade of genes orchestrate a series of events leading to formation of blood vessels in an embryo.

级联的基因控制的一系列的事件参与了胚胎中血管的形成。

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The free cell wall formation occurs first in the micropylar end when the embryo is 4-6 celled stage, then to the chalazal end and the center.

当胚发育到4—6个细胞时，在胚囊珠孔瑞的游离核之间先形成细胞壁。细胞壁的形成是以自由壁的方式从珠孔端到合点端自外向内进行。

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The idea of selling any body part, let alone the combination of sperm and egg that leads to the formation of an embryo, can be disconcerting at first (or even second) thought.

FORBES: Making Babies: Selling Embryos, Despite Ethical Concerns, Addresses Genuine Needs