精核

Objective: To investigate the correlation of spermatogenesis impediment with chromosomal abnormality and with the deletion of DAZ gene.

目的：探讨染色体核型异常和DAZ基因缺失与生精障碍的关系。

Many structural changes took place at the beginning of tapetum cell degeneration.

精细胞与不规则形状的营养核存在空间上的物理联结。

GA(subscript 1+4) distribution in microspore mother cells, uninucleate and binucleate pollen, especially in nucleus, gradually increased with the anther development. Moreover, some GA(subscript 1+4) distributed in sperms.

短日照条件下花药可育，花粉母细胞、单核花粉和二核花粉内GA(下标 1+4)的分布数量逐浙增多，以细胞核最为明显；成熟花粉的精细胞内也有一定数量的GA(下标 1+4)分布。

RESULTS: Primarily cultured cells were colored with CD44 in-situ hybridization, kytoplasm as buffy and nucleus as blue by counterstain.

结果：原代细胞以CD44原位杂交显色，胞浆呈棕黄色，胞核经苏木精复染呈蓝色。

This phenomenon warrants further study. 4. Phylogeny study on Croomia and Stemona The relationship of the genus and the taxonomic placement of Stemonaceae The phylogenetic tree of matK, trnL-F, atpB-rbcL and ITS sequences data indicated that it was natural to place Stemona and Croomia in one family.

黄精叶钩吻属和百部属的分子系统学研究百部科属间关系和科的系统地位叶绿体DNA(matK、trnL-F和atpB-rbcL)及核DNA序列构建的系统树显示Stemona和Croomia形成稳定的单系类群，表明将这两个属放在同一个科是自然的，不支持将Croomia独立成科。

Six species of Meloidae in Xinjiang were cytologically analysed.

本文报导了新疆6种芫菁精原细胞中期染色体核型的研究结果。

Images showed the fusion process of male and female nuclei and polyspermous fertilization.

大量图片显示了雌雄性核融合的详细过程以及多精受精现象。

Founded in 1994, formerly the main production of food additives, products include smoked flavor viennensis nuclear material series products, by deodorant products, pickled products agents, natural products and pepper spice oleoresin, pepper oleoresin, cumin oil resin products such as essential oils, which led Series Product smoked flavor material to fill the domestic blank, by the national science and technology award, and for eight consecutive years by the National Award for quality products.

公司成立于1994年，前身主要生产食品添加剂，产品包括山楂核烟熏香味料系列产品、增香剂系列产品、腌制剂系列产品、天然香辛料系列产品及花椒油树脂、辣椒油树脂、孜然油树脂等精油类产品，其中主导产品烟熏香味料系列填补国内空白，获国家级科技成果奖，并连续八年获国家优质产品奖。

The main products are: maintenance-free battery grid of low-antimony, lead calcium alloy, lead antimony alloy, lead and cadmium alloys, electrolytic lead, refined lead, lead components of nuclear shielding, lead parts.

主要产品有：免维护蓄电池板栅低锑、铅钙系列合金、铅锑系列合金、铅镉合金、电解铅、精铅、核屏蔽铅构件、铅零件等。

In the curio-box of a Chinese emperor, there always stores a number of delicate miniature sculptures, such as cruising scholars carved on an olive nut, or paintings and calligraphy in a piece of jade.

中国皇帝的多宝格中，经常置放著一件件型微工细的雕作，或者是以橄榄核精刻乘船游江的文人雅士，或者是具体而微的玉中书画。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。