ADM-201 dump PMP dumps pdf SSCP exam materials CBAP exam sample questions

人之初,性本雌? – 译学馆
未登录,请登录后再发表信息
最新评论 (0)
播放视频

人之初,性本雌?

We were all female

亲爱的绅士们,科学来做忏悔了。
Dear gentlemen, Science has a confession.
实际上你们的生命都是从女性开始。
Your life actually began as a female.
嗯,在身体表象上和物理上来说,确实是。
Well, phenotypically or physically speaking that is,
虽然一些人更愿意说这是中性阶段
though some prefer to call this stage gender neutral.
你可能知道
As you might know,
两个人结合后会把各自一半的基因结合在一起
two people mate, they each combine half of their genetic information together;
他们各自有23条染色体,结合后的那一对儿染色体决定了你的性别。
23 chromosomes each. One pair of these chromosomes helps to determine your sex.
如果你是一个女孩,那么你就有两条X染色体,一条来自于你的妈妈,而另一条
If you’re female you contain two X chromosomes one from your mother and one
来自于你的爸爸
from your father
而男生则是有X和Y染色体各一条。受孕时
while males have one X and one Y chromosome. At the moment of conception
你是男孩还是女孩取决于你的基因
you were of course male or female based on your jeans
但是Y染色体并并不是完全没有作用。事实上,
but the Y chromosome doesn’t kick in right away. In fact, the first five to six
一般认为胎儿成长的最初五六个星期是只有X染色体
weeks of embryonic development are attributed to the X chromosome alone
女性从胎儿发育到完全成熟只受X染色体
and females grow from embryo to fully developed to the influence of
的影响。那么,Y染色体有什么用呢?
only the X chromosome. So what does the Y chromosome do?
一旦被触发,Y染色体上的一个基因,也就是大家所知的SRY基因,
Once activated, one of the genes on the Y chromosome
有两大功能:一是抑制X染色体的
known as the SRY gene has two functions: to inhibit certain features of the X
某些特性
chromosome
二是通过主导男性才具有的生理特质来
and to impose through dominance the physiological traits that a male must
施加影响
have.
卵巢脱落变成睾丸,阴唇演化成阴囊。
The ovaries descend and become the testes and the labia fuses to create the scrotum.
如果你是男士,请看,虽然在某种程度上各位更有发言权
If you’re a male, take a look. Though it’s more pronounced in some and then
但你也能注意到组织上的一条线或者凸起
others, you’ll likely notice a line or ridge of tissue on the scrotum
也叫做阴囊褶皱,阴茎和阴囊上的皮肤
which is called the ‘scrotal raphe’. The skin of the scrotum and penis
在胚胎时期,细胞是层层叠叠就像是拉上去的拉链。
are zipped up like a zipper as the layers of cells develop in the embryo.
那么阴蒂有怎样的变化呢?
And the mail variant of the clitoris?
是的,就是阴茎,如果由于某种原因 Y染色体没有
Yep, that’s the penis. If the Y chromosome does not become activated for some
被激活的话
reason
那么男士的女性性状就会保留着。
then the female phenotype or physical appearance will persist in a male.
更具有说服力的是,这就是为什么男士也会有乳头的一个原因了。
Power added, this is also part of the reason males have nipples.
在Y染色体和SRY基因被激活之前,乳头性状
The nipples form before the activation of the Y chromosome
就会发育形成且保留一生。
and SRY gene and thus remain through development and life.
但是乳房不会发育。抱歉,各位有什么敏感的问题要问吗?
But, you don’t develop breasts. Sorry. Got a burning question you want answered?
欢迎在评论里或者脸书或者推特上问问题,以支持更多的每周
Ask it in the comments or on Facebook and Twitter and subscribe for more weekly
科学视频。
science videos.

发表评论

译制信息
视频概述
听录译者

收集自网络

翻译译者

收集自网络

审核员

自动通过审核

视频来源

https://www.youtube.com/watch?v=z1Kdoja3hlk

相关推荐