精子核

Results:It was shown that IT could cause MN and SA in mice. Conclusion:IT is a potential mutagen.

结果：板蓝根水煎液能明显诱发小鼠骨髓嗜多染红细胞微核和小鼠精子畸形，具有致突变作用。

In spermatids, there are many IFs and the NM is concealed beneath the clumps of chromatin.

精子细胞中，中间丝丰富，核基质结构被致密的染色质团簇所掩盖。

In male, three kinds of sex steroid receptors were distributed in the spermatogonia, spermatocytes and spermatids, and the positive reaction was localized in the cytoplasm and nucleus of these spermatogenic cells.

在雄性，3种类固醇激素受体分布在不同发育时期的精原细胞、精母细胞和精子细胞中，受体阳性物定位在胞质和核。

Most sperm nuclei eventually developed into the male pronuclei, just like the normal sperms, except sperm nuclei in a few zygotes kept dense throughout the fertilization process. Dense chromosome body was seen at the nuclear area during the prophase of first mitosis, and in the middle of spindle at metaphase of first mitosis.

精子入卵后形成精核，大多能够逐渐解凝、液化并膨大，最终形成形态正常的雄性原核，但在第一次卵裂早期退化成浓缩的染色质小体，并在胞质分裂时随机地分配到其中一个子细胞里的分裂沟附近。

However Feng et al (1997) and Wakayama et al (1997, 1998) have first reported that followed by injection of PbI into the enucleated oocyte, which was injected into the head of sperm, and the recombinant oocyte could produce a mouse offspring with generational function.

然而，Feng等（1997），Wakayama 等（1997、1998）的研究结果证实：将PbI注入去核卵母细胞后再注入精子头部可以产生具有生殖功能的小鼠后代。

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。