sperm nucleus meaning in Chinese
精核
Examples
- The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis .
两个精核和管核都是从同一个小孢子核有丝分裂产生的。 - Study on impact factors of common carp sperm nuclei decondensation in cell - free system
非细胞体系中红鲤精核去凝集的影响因子研究 - Trituberculatus has homogeneous sperm nucleus , and s . chekiangense consists of fibrous and condensed sperm nucleus . the number of radial arms in p . trituberculatus is less than the latter ' s . the sperm of p . trituberculatus is round in shape , and that of s . chekiangense is square in shape
罗氏沼虾的精核边缘呈帽沿状向下翻卷，棘突均质，间有等距横纹，精核内有囊泡团存在，棘突较短，核分均质核和丝状核。 - Spermal ultrastructure the sperm ultrastructure of the macrobrachium rosenbergii and exopalarmon carinicanda holthuis analogical , the whole sperm looks like a inversed umbrella , it has a main body , a spike and a little bit cytoplasm . there are some vesicle exist in the m . rosenbergii sperm nucleus . the relatively length of the spike of the e
各种细胞器数量在精子发生过程中逐渐增多，其中内质网以粗面内质网为主，线粒体于初级精母细胞阶段始出现，膜轮结构在次级精母细胞中出现，精细胞早期的上述细胞器分化成电子密度高的前顶体腔，并逐渐分化形成方形顶体。 - At the beginning , the cytoplasm is evently distributed , then it is polar - distribution and at last it only remains between the apical cap and the sperm nucleus . during the period of spermatogonium , chromatin in the nucleus is in the shape of conglomeration and the nucleus is big ( i . e . the proportion of the nucleus to cytoplasm is bigger than spermatocyte ) . at the stage of primary spermatocyte , chromatin accumulates to sc complexity . the nucleus of the mature sperm takes the shape of a plate and filmentous chromatins exist freely in uncondensed nucleus
精子发生过程中，细胞器由少到多，到最后解体；细胞质从均匀分布，到精细胞期极性分布，最后残留于成熟精子的顶帽和精核之间；细胞核在精原细胞期，染色质异固缩，胞核大，即核质比大于后续的精母细胞；在初级精母细胞中，染色质凝聚为sc复合体，到成熟精子，精核呈碟状，染色质呈丝状游离于非浓缩的核中。