What's the difference between a gamete and a zygote?

胞和受精卵区别是什么？

Work is already under way to develop principles for editing reproductive cells.

编辑胞原则制定工作已经开始。

Another, they're releasing reproductive cells called spores.

后来，它们又释放一种叫做孢子胞。

So, a germ cell ovarian cancer refers to situations where these precursor germ cells become cancerous and form tumors.

因此，卵巢胞癌就是指位卵巢胞癌变形成肿瘤。

Its stable temperature and high density help preserve and disperse reproductive cells.

稳定温度和较高密度有助和分散胞。

" FYI this is probably the first human germ line editing, " Dr. Quake wrote.

“谨供参考：这可能是人类胞首次编辑，”奎克写道。

Many algae, for example, have sex cells that are indistinguishable in size.

例如，许多藻类胞大小难以区分。

This is possible because organisms evolve when random mutations happen in the DNA of reproductive cells.

这是可能，因为当胞DNA发随机突变时，物就会进化。

Unless land organisms return to the water to reproduce or have specially adapted sex cells, their options are limited.

除非陆地物回到水中繁或有特别适应胞，否则它们选择是有限。

It does not always involve strictly female and male individuals with differently sized sex cells that fuse internally.

它并不总是严格涉及拥有不同大小内部融合胞女性和男性个体。

Histologically, prominent features include large, round tumor cells resembling germline tumors; or small cells forming Homer-Wright rosettes.

松果体瘤主要组织学特征包括类似胞肿瘤中巨大圆形肿瘤胞，或是形成Homer-Wright菊形团小胞。

And, each follicle is made up of a germ cell, also known as an oocyte, which is the immature egg.

每一个卵泡都由一个胞组成，也就是卵母胞，就是未成熟卵子。

These are the most common germ cell tumor in children, and the tumors can be very aggressive.

这是最常发儿童身上胞瘤，肿瘤侵袭性较强。

However, each reproductive cell has only 23 individual chromosomes.

然而，每个胞只有 23 条独立染色体。

Germ cells, as they're called, developed inside a fortress-like structure within the testes.

这些所谓胞是在睾丸内一个类似堡垒结构内发育。

Some originate from ovarian germ cells, such as mature cystic teratomas, also called dermoid cysts.

有起源卵巢胞，例如成熟囊性畸胎瘤，又名皮样囊肿。

The other option is the sister chromatids of the x chromosome don't separate in meiosis two in the female germ cell.

女性胞中，X染色体姐妹染色单体在第二次减数分裂时没有分离。

Ferns, for example, reproduce from spores and need damp environments for their reproductive cells to reach each other.

例如，蕨类植物从孢子中繁，它们胞需要潮湿环境才能相互接触。

The macronucleus controls the non-reproductive cell functions, like eating, movement, and digestion and the micronucleus is necessary for reproduction.

大核控制非胞功能，如进食、运动和消化， 而微核是繁所必需。

This happens around half-moons, when weaker tides calm the water's surface, creating the perfect conditions for their sex cells to couple up.

这发在半月时候，当较弱潮汐让海面平静，为它们胞配对创造了完美条件。