查询词典 sperm nucleus

Sterilisation works by preventing sperm from reaching an unfertilised egg. This is achieved by either blocking or cutting the tubes that carry the sperm or eggs.

消毒工程，以防止精子从深远的一unfertilised鸡蛋，这是所取得的任何阻挠或割管进行精子或卵子。

One of two sperm get into an archegonium and fused with egg. The nucleus of fertilized egg began to divide, and the walls were formed after the third division. The eggs without fertilization divided two times and then disappeared.

雄配子体产生的两个精子中的一个进入颈卵器与卵细胞结合形成受精卵，受精卵核到第3次分裂形成细胞壁，没有受精的卵细胞还要进行两次有丝分裂后才消失。

We infer that hira gene is related to sperm nucleus decondensation in fishes.

在果蝇中的研究已经表明hira基因与精核解凝形成雄性原核有关。

Nuclear changes in gynogenetic eggs of the scallop were examined under a fluorescence microscope during meiosis and fertilization, indicating that UV-irradiated sperm nucleus did not participate in the karyokinesis at anaphase of the first cleavage.

运用荧光显微镜观察探讨了栉孔扇贝雌核发育卵子在受精和成熟分裂过程中的核相变化，发现UV照射精核不参与核分裂，首次提供了栉孔扇贝雌核发育的细胞学证据。

These is a nucleolus in the nucleus of mature sperm.

成熟的精子含有核仁。

Female parthenogenesis in which the embryo contains only maternal chromosomes due to the failure of the sperm to fuse with the egg nucleus.

由于在精子与卵子融合过程中发生失败而使胚胎只包含母染色体的一种单性生殖。

The head of the sperm cell and the nucleus of the egg cell then unite and form a new cell: the zygote.

然后，精子的头和卵子的核融合，形成一个新细胞：受精卵。

In the present study, several chromosomes were simultaneously marked successfully in the same sperm nucleus within 2.5 hours.

在2.5 h内标记了同一精子核内的多条染色体，单色以上标记达到99％。

The haploid nucleus of a sperm or egg before fusion of the nuclei in fertilization .

大多数巨蚓的生殖是正常异体受精。

Finally, from our results, we concludes that toxicity of cryoprotectant is the main factor of DNA damage in cryopreserved sperm nucleus.

分析认为，大黄鱼冻精DNA损伤的主要因素为抗冻剂的毒副作用。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。