精子与卵子结合开始受精过程。
The sperm fuses with the egg to begin the process of fertilization.
从受精到出生大约是266天。
胚胎的性别早在受精时就决定了。
进行受精前用显微镜检查精子样本。
The sperm sample is checked under the microscope before insemination is carried out.
两天后他们把受精卵移植回我的体内。
Two days later, they implanted the fertilized eggs back inside me.
非同卵双生胎是两个受精卵同时在子宫着床的结果。
Non-identical twins are the result of two fertilized eggs implanting in the uterus at the same time.
她第一次接受体外受精时，那还是一个比较新的方法。
When she first underwent IVF it was still a relatively new procedure.
在未受精卵中，这些物质是不活跃的，而且分布不均匀。
In the unfertilized egg, the substances are inactive and are not distributed homogeneously.
这个问题的出现是因为植物需要通过风和昆虫来传递花粉以受精和繁殖。
The problem occurs because plants need to transfer pollen by wind and insect to fertilization and reproduction.
当卵子受精时，这些物质变得活跃起来，并可能控制与它们相互作用的基因的行为。
When the egg is fertilized, the substances become active and, presumably, govern the behavior of the genes they interact with.
由于同卵双胞胎来自于一个分裂成两个的受精卵，他们实际上共享相同的遗传密码。
Because identical twins come from a single fertilized egg that splits into two, they share virtually the same genetic code.
在滞育期间，小袋鼠呆在雌袋鼠的育儿袋里，因而推迟了子宫内第二个受精卵的发育。
During diapause, a young kangaroo stays in the female's pouch and growth of a second fertilized egg inside the uterus is delayed.
与水生和海洋生物不同，陆生植物不能总是依靠水流来携带它们的生殖细胞和分散它们的受精卵。
Unlike aquatic and marine forms, land plants cannot always rely on water currents to carry their sex cells and disperse their fertilized eggs.
煎蛋水母，也被称为美杜莎水母，它的卵在海水中受精，然后发育成固定在海床有机体上的微小幼虫。
The fried egg jellyfish, also known as medusa, produce eggs that are fertilized in sea water, which then develop into a tiny larva fixed to sea bed organisms.
卵子受精之前，这种基因会产生一种蛋白质，这种蛋白质存在于卵子的细胞质中，它控制着细胞分裂的模式，从而控制着旋向性。
Before egg fertilization, the gene produces a protein, found in the cytoplasm of the egg, that controls the pattern of cell division and thus handedness.
在这些物种中，受精卵发育为雌性，未受精卵发育为雄性。
In these species, fertilized eggs develop into females and unfertilized eggs into males.
只需一个精子就可以使卵受精。
在受精后大约六七个星期时，男性和女性胚胎之间没有什么差别。
For about six or seven weeks after conception, there is no differentiation between male and female.
合子输卵管内移植和配子输卵管内移植的区别在于受精过程仍然发生在实验室而不是输卵管。
ZIFT differs from GIFT in that the fertilization process still takes place in the laboratory versus the fallopian tubes.
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。
Presumptive zygotes were cultured in mSOFaa medium supplemented with OCS or FBS had higher blastocyte yield than that in culture medium with free serum.
20年后，英国人类受精和胚胎管理局成立。
The UK Human Fertilisation and Embryology Authority was founded 20 years later.
花粉通常会被风吹到其它树上使其受精。
Pollen is usually blown to other trees and fertilizes their ovules.
我的理想是帮助那些正受精神疾病煎熬的人们。
安娜：也很受精神病患者和心脏病患者的欢迎。
Anna: They're very popular among the psychiatric and cardiac patients as well.
这意味着更少的受精卵，更少的幼崽和更小的种群数量。
That means fewer fertilized eggs, fewer babies and smaller populations.
在通常情况下，不论鸡蛋是否受精，一只母鸡每天会产下一只鸡蛋。
A hen typically lays an egg a day, whether it is fertilized or not.
艾略特经历了这种体验之后所创作的诗，是饱受精神煎熬的诗。
Eliot's poetry, the poetry he created out of this experience, is a poetry of spiritual agony.
另外五名曾经体外受精失败的妇女，在接受该项治疗之后，目前已怀孕了。
Five other women, all of whom have a history of unsuccessful IVF treatment, are now pregnant after receiving the treatment.
这些可能是流产或者宫外孕(受精卵在宫腔外着床，通常为输卵管)的症状。
These may be signs or symptoms of a miscarriage or an ectopic pregnancy - when the fertilized egg implants outside the uterus, usually in a fallopian tube.
这些可能是流产或者宫外孕(受精卵在宫腔外着床，通常为输卵管)的症状。
These may be signs or symptoms of a miscarriage or an ectopic pregnancy - when the fertilized egg implants outside the uterus, usually in a fallopian tube.
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