Presumptive zygotes were cultured in mSOFaa medium supplemented with OCS or FBS had higher blastocyte yield than that in culture medium with free serum.

受精卵在含血清 FBS 或 OCS 培养液中的囊胚发育率明显高于在无血清培养基中的囊胚发育率。

Angiosperms begin as free zygotes immersed in a fluid.

被子植物开始时是浸沉在液体中的游离合子。

The zygotes formed in conjugation are partial diploids or merozygotes.

接合形成的合子是部分二倍体，也叫做部分合子。

Conclusion Zygotes and embryo quality can be predicted by morphology of the first polar body.

结论通过卵细胞第一极体形态可预测受精卵及卵裂期胚胎质量。

The spores and gametes could grow to new thalli independently, and the same to motile zygotes.

漂浮浒苔的游孢子、配子或配子结合形成的合子均能发育成一株新的藻体。

Objective: To study the preservation and development of mouse zygotes after being frozen and thawed.

目的：研究小鼠受精卵冷冻解冻后的发育效果。

Gametes showed intensive positive phototaxis, after syngamy, motile zygotes showed negative phototaxis.

其配子具有明显的正趋光性，合子具有负趋光性。

Distinct layers are often visible in thick-walled resting cells such as chlamydospores or zygotes of phycomycetes.

在厚壁休眠细胞如藻菌纲的厚孢子或接合子中明显的几层是常常能看见的。

Lower concentration of the microinjected DNA, choosing CZB and zygotes with good quality can enhance efficiency of microinjection.

选用较低的基因浓度，良好的操作介质CZB，使用质量好的受精卵，会提高显微注射的效率。

The former includes the occurrence of receptacles, the liberation of sperms and eggs, and the relation between the development of zygotes and environmental factors.

前者包括生殖托的发生、精卵的排放及合子的发育与环境因子的关系。

Refering to the number of free nuclei of the endosperm, the fusion of male and female nucleoli in most of the zygotes occurred in the stage of 32 to 128 nuclei of the endosperm.

如果以胚乳游离核数目为对照，大部分合子中雌雄性核仁的融合发生在32～128个胚乳游离核时期。

An organism consisting of two or more tissues of different genetic composition, produced as a result of mutation, grafting, or the mixture of cell populations from different zygotes.

嵌合体由两种或两种以上有不同基因结构的组织所构成的有机体，由于突变、嫁接或来自不同合子的细胞群体相混合而产生。

As a result, an in vitro zygotic embryogenesis system was build up, in which single tobacco zygotes could develop into fertile plants via embryogenesis or organogenesis under optimal condition.

通过培养条件的优化，使烟草合子在体外通过器官发生途径与胚胎发生途径两种方式再生可育植株，从而创建了烟草合子的体外胚胎发生系统。