利用石蜡切片技术观察了埃及白睡莲的大、小孢子的发生，雌、雄配子体的发育，受精作用以及胚和胚乳的发育。
The megasporogenesis, microsporogenesis, female and male gametophyte development, development of embryo and endosperm were observed by using paraffin wax.
当卵子受精时，这些物质变得活跃起来，并可能控制与它们相互作用的基因的行为。
When the egg is fertilized, the substances become active and, presumably, govern the behavior of the genes they interact with.
但是，经由试管受精研究，科学家们知道，较高的葡萄糖水平会刺激男性胚胎的生产，而且会对女性胚胎的形成产生抑制作用。
But scientists know from in vitro fertilisation research that higher levels of glucose encourage the growth and development of male embryos while inhibiting female embryos.
目的探讨妊娠相关血浆蛋白- A在卵泡发育中的作用机制，及其与体外受精—胚胎移植的相关性。
Objective To study mechanism of pregnancy-associated plasma protein-A (PAPP-A) acting on follicular development and relationship between PAPP-A and in vitro fertilization -embryo transfer (IVF-ET).
目的：通过人输卵管上皮细胞共培养体系及EGF作用，探讨输卵管上皮及egf对受精卵体外发育的影响。
Objectives: to know the effect of human oviductal epithelial cells system and EGF on the vitro development of mouse embryos, according to the role of human oviductal epithelial cells system and EGF.
目的：通过人输卵管上皮细胞共培养体系及EGF作用，探讨输卵管上皮及egf对受精卵体外发育的影响。
Objectives: to know the effect of human oviductal epithelial cells system and EGF on the vitro development of mouse embryos, according to the role of human oviductal epithelial cells system and EGF.
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