卵子的

Egg selection enables only the healthiest eggs to be taken from the ovaries for fertilisation. It can be useful for women with diminished number and quality of eggs.

蛋的选择，使只有最健康的卵子将要采取的从卵巢为受精，它可用于妇女与减少的数量和质量的鸡蛋。

They are not sure why smokers produce fewer boys, but they suspect that sperm carrying the Y chromosome for male children may be more susceptible to the effects of tobacco which could make it less likely to fertilise the woman's egg.

他们无法确定，为什么吸烟者生男孩的可能性较小。但是他们怀疑，决定生男孩的携带y 染色体的精子更容易受香烟的影响，使其与卵子结合的可能性降低。

Either of two conjugating gametes that differ in structure or behavior, such as the small, motile male spermatozoon and the larger, nonmotile female ovum.

异形配子在结构或行为上不同的两个配合配子之一，如小的能动的雄性精子与大的不能动的雌性卵子

Scores of dogs have been cloned using so-called somatic cell nuclear transfer, a technique for hollowing out the nucleus of a donor egg and injecting it with the donor's genetic material, which is typically skin tissue taken from the ear.

许多犬只的复制是利用所谓体细胞核转植的技术，这种技术将捐赠卵子中的细胞核挖出，再注入由捐赠犬只身上取出的遗传物质，通常是它们耳朵的皮肤组织。

Of, relating to, or designating the sex that has organs to produce spermatozoa for fertilizing ova.

雄的，公的：属于、表明是或与某种性别有关的，此性别具有能产生使成熟卵子受精的精子的器官

Of, relating to, or being a twin developed from two separately fertilized ova; dizygotic.

异卵双生的由两个分别受精的卵子生出的双胞胎的；由两个卵生出来的相象的人或物

Of,relating to,or being a twin developed from two separately fertilize d ova;dizygotic.

异卵双生的由两个分别受精的卵子生出的双胞胎的；由两个卵生出来的相象的人或物

Either of two conjugating gametes that differ in structure or behavior,such as the small, motile male spermatozoon and the larger,non motile female ovum.

异形配子在结构或行为上不同的两个配合配子之一，如小的能动的雄性精子与大的不能动的雌性卵子

They called it "infection of the germ", a neat instance of a modern sounding phrase with an obsolete meaning: the fetus permanently affecting the mother's reserve eggs. this idea was given its impressive greek name, telegony ("at a distance"and "offspring") by august weismann (1834–1914), the german biologist whose rigorous separation of somatic and germinal cells cast doubt on the inheritance of acquired characteristics. weismann believed his notion of the germ plasm could explain telegony, should it be shown to exist, but he doubted its reality.

他们称之为"细菌感染"，意思是"胎儿永久影响母亲的储备卵子"。august weismann（1834年～1914年，德国生物学家）给这一理论起了一个令人印象深刻的希腊名字， telegony （"距离"和"后代"），他仔细的分离肉体和生发细胞，对特征遗传提出质疑。weismann相信他的关于遗传物质的概念可以解释telegony，它可能是真的，但weismann怀疑其真实性。

The main research achievements on oogenesis and embryogenesis in mammals are described in this review,including the resumption of meiotic division;activation of MⅡ oocyte;development of parthenogenetic,gynogenetic,androgenetic and reconstituted embryos;and the genetic and reproductive potentials of chromosomes within the first and the second polar body.

本研究将论述哺乳动物卵子发生和胚胎发生的最新研究进展，包括：减数分列的启动， MⅡ期卵母细胞的激活，孤雌胚、雌核胚、雄核胚和重组胚的发育以及第一与第二极体染色体的遗传和生殖潜力。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。