Editing human embryos used for reproduction is still banned.

然而，以繁育目编辑人胚为仍被禁止。

For example, most countries ban the editing or modification of genes in human embryos.

例如，大多数国家禁止编辑或修改人胚中基因。

So if this embryo implants - and we can see that on ultrasound … and - forms a nice placenta, that is the goal for us to proceed with the next step on the Northern White rhino embryos.

所以如果这个胚移植——我们可以在超声波上看到——形成一个良好盘，就是我们对北部白犀牛胚下一步目标。

The cells in an embryo start with one master genome.

胚上细胞 始於一个最先基因组。

They have managed to create embryos that are part-monkey and part-human.

他们成功地创造出了部分猴子、部分人胚。

Six months later doctors successfully implanted an embryo the couple had created through IVF.

六个月后，医生成功将这对夫妇通过试管授精创造胚植入她体。

The image reveals that forming inside some of the EGGs are embryonic stars.

图象显示一EGGs部形成是胚阶段恒星。

Inside a chicken egg, the growing embryo produces something called a yolk sac.

在鸡蛋里面，成长胚产生一种名为卵黄囊东西。

The other twin will go on to form a totally normal embryo.

而另一个儿会继续发育成一个完全正常胚。

Another collection in December 2019 produced one more embryo.

在 2019 年 12 月搜集精子和卵子 又生产了一颗新胚。

This new, viable embryo is the third of its kind.

这个新、可存活胚是此胚中第三个。

That's a huge milestone in fetal development.

这是胚发育中重要里程碑。

Dinosaur embryos are some of the rarest fossils.

恐龙胚是最稀有化石之一。

And then they used genetic testing, and they predicted that that little tiny embryo, Jenna's embryo, would be the best of the bunch.

之后基因检测，并确定筛选出来小胚，珍娜胚，会是当中最棒一个。

In FAS, ethanol interferes with cell division and proliferation, cell growth and differentiation and with the migration of mature cells to their final location in the developing embryo which affects the development of various fetal tissues, including the brain.

在FAS中，乙醇会干扰细胞分裂、增殖，影响细胞生长和分化，并且在胚发育过程中，妨碍成熟细胞迁移到它们最终部位，这会影响儿各种组织发育，其中包括大脑。

But growth requires a seed, and the heart of the creative process lies in the production of the original fertile nucleus from which growth can proceed.

可是萌芽生长需要种子，而创造过程核心也在于形成最 初丰实胚，使成长得以。

On the tree of life, this acorn worm is closer to us than they are to lobsters, but spine-to-guts, their embryos show the lobster pattern, and not ours.

在生命之树上，这种橡子虫比龙虾更接近我们，但脊椎到脏，它们胚显示出龙虾形状，而不是我们。

" John, " she murmured to herself, " John ..." Then " My Ford, " she wondered, have I given this one its sleeping sickness injection, or haven't I? She simply couldn't remember.

“约翰，”她喃喃地自语道，“约翰… … ”然后，“福帝呀！”她糊涂了，这个胚昏睡病预防针打了没有？没有吗？她简直不记得了。

The answer to question Number 1, is yes, definitely: embryos start peeing after just two months of development, around the time they first begin swallowing and, therefore, drinking amniotic fluid.

答案是，是滴，肯定：胚在发育后仅两个月后就开始嘘嘘，大约也在这个时候，他们开始吞咽，以及，喝羊水。

One theory is that these physical changes are regulated by an embryonic structure called the neural crest.

一种理论认为，这身体变化是由被称为神经嵴胚结构调节。