Assisted reproductive technologies are things like in vitro fertilization.

这是一种类似体外受精的技术。

These were determined right after fertilization.

这些是在受精后立即决定的。

Just days after fertilization, the embryo implants in the lining of the uterus.

在受精后的几天内，胚胎就会被植入子宫内膜。

Heredity, date of fertilization, membership of Bokanovsky Group–details were transferred from test-tube to bottle.

遗传状况、授精日期、波坎诺组别——全部细节都从试管转到瓶子上。

If fertilization occurs, then the corpus luteum continues making progesterone until the placenta forms.

如果受精发，黄体会持续释放黄体激素直到胎盘形成。

Scientists are looking into the possibility of saving the northern white rhino through in-vitro fertilization.

科学家们正在对通过体外受精挽救北白牛物种的性进行研究。

After fertilization, a male embryo would then have 47 chromosomes instead of the standard 46.

在受精后，这种男性胚胎共有47条染色体而非正常的46条。

In vitro fertilization can make pregnancy possible for some females with Turner syndrome who are infertile.

体外受精的应用让患有特纳综合征的不孕女性怀孕成为一种。

You have got to be kidding me. Not at all. Frequent coitus dramatically increases the odds of fertilization.

你开什么国际玩笑啊。完全不是。频繁的交媾激增受精的几率。

And this mitochondrial DNA is specifically inherited from your mom because your dad's degraded immediately after fertilization.

这个线粒体DNA是特别从你妈妈那里遗传过来的，因为爸爸的在受精后就马上退化了。

But until 6 or 7 weeks after fertilization, both 'XY' and 'XX' embryos have identical gonads.

但直到受精后6或7周，XY和XX胚胎都有相同的殖腺。

Microbes can reach plants in a number of ways, like getting splashed onto it during watering or fertilization.

微物接触植株的方式很多样，比如在浇水施肥的时候洒落到植株上。

If fertilization doesn’t occur, the spiral arteries collapse, and the superficial layers of the endometrium die.

如果卵子没有受精，螺旋动脉将会收缩，子宫内膜的表层也会因此凋亡。

For women who struggle with infertility, in-vitro fertilization can be used.

对于与不孕作斗争的女性，以采用体外受精。

And when you do in vitro fertilization, there's very good reasons to do it.

有时有人无法怀孕。

But the Oaxacan corn does well despite the bad soil, and with little or no fertilization.

但是，尽管长在极少甚至没有肥料的贫瘠土壤中，瓦哈卡州玉米依旧长得很好。

And that is? Using in vitro fertilization and a surrogate uterus to gift humanity with our progeny.

什么阶段？利用试管授精和代孕下我们的后代向人类献礼。

The secondary oocyte stops in metaphase of meiosis 2, and waits for fertilization as the menstrual cycle transitions into the luteal phase.

次级卵泡会在第二次减数分裂中期停止分裂，并且在卵泡期向黄体期转换的时候等待受精。

If fertilization doesn’t happen, then the corpus luteum stops making hormones after around 10 days, becomes fibrotic, and is called the corpus albicans.

如果次级卵母细胞没有受精，大概10天之后，黄体就会停止释放激素而纤维化，形成白体。

If fertilization doesn’t happen, then the corpus luteum stops making hormones after approximately 10 days, becomes fibrotic, and is called the corpus albicans.

如果未受精，黄体会在大概10天后停止成激素，并纤维化变成白体。