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汉语拼音：shòu jīng luǎn

受精卵，指的是精卵相会。这个过程就是受精的过程。受精过程约需24小时。当一个获能的精子进入一个次级卵母细胞的透明带时，受精过程即开始。到卵原核和精原核的染色体融合在一起时，则标志着受精过程的完成。以人为例，精子与卵子在输卵管里会合后，形成一个受精卵，生命开始了。卵子受精后，分裂为两个细胞，大约每隔12小时分裂一次。这团细胞从输卵管进入子宫时，分泌出液体，于是膨胀成一个空心球，叫做胚泡。这个空心球在几天内会变成两层，球内含有微量液体，细胞团堆在球的一侧。球壁以后会变成胎盘和羊膜，里面的细胞则会变成胎儿。受精卵靠输卵管的收缩来到子宫，输卵管内壁的许多纤毛，不断推动管内的液体，对输送受精卵也起辅助作用。一般在排卵后4天左右受精卵到达子宫腔，约在卵子脱离卵胞的第9天，胚胎钻进子宫内膜，发育长大。

• Making clones by using the cell from a fertilized ovum has been a rather popular technology and has been used in the past.

  由受精卵细胞进行克隆已经是相当成熟的技术，过去就曾被使用过。

• The growth of a zygote into a morula is called fragmentation.

  受精卵发育成桑椹胚的过程叫卵裂。

• Even if he did fertilise the egg of a non-paired female it would not survive as it takes two adults to raise a single chick.

  即使雄鸟让单身的雌鸟产下了受精卵，但如果没有两只成年鸟的照顾雏鸟将无法生存。

• If the endometrium polyp is not prompt excises, easy to block the oviduct aperture, the disturbance fertilized egg bed and the growth.

  子宫内膜息肉如果不及时切除，容易阻塞输卵管开口，干扰受精卵着床和发育。

• Most gay men opt for an IVF procedure using an egg from a donor placed in the body of a different woman, who carries the embryo to term.

  大多数男同志选择走试管婴儿的程序——从捐助者那儿得到卵子，再把受精卵植入另一名妇女的体内，而后者则怀胎至足月，分娩婴儿。

• ISCo has found a way of producing embryonic-like stem cells from unfertilised eggs.

  ISCo发现了一种方法从非受精卵中产生类似胚胎的干细胞。

• dizygotic A term used for twins derived from two separate fertilized eggs; fraternal twins. Opposite of monozygotic.

  异卵双生来自两个分开的受精卵的双胞胎。

• Normal development, from fertilized egg to adult organism, depends on each cell receiving proper instructions from its environment.

  受精卵到成体生物的正常发育依赖于每个细胞从环境中获得正确指令。

• While reducing the excessive lack of oxygen due to a fertilized egg deformity or physical weakness appears likely to fry.

  同时减少因受精卵过度缺乏氧气出现畸形或体质虚弱的鱼苗的几率。