精母细胞其它各期核的大小无显著变化。
The nuclear size of spermatocytes in other stages did not exhibit any conspicuous changes.
次级精母细胞经短暂的发育过程很快形成精细胞。
The secondary spermatocytes become the spermatid quickly by short time development.
目的：在超微结构水平研究带绦虫精母细胞的发生。
AIM: To study the spermatocytogenesis of taeniid cestodes at the ultrastructural leaves.
在次级精母细胞时期，胞质内出现致密的前顶体颗粒；
At the stage of secondary spermatocyte, electron densed proacrosomal granules were found in the cell.
用透射电镜研究了泥蚶精母细胞与精细胞的超微结构变化。
The ultrastructural characteristics of spermatocytes and spermatoblast of Tegillarca granosa were studied with transmission electron microscopy (TEM).
初级精母细胞多边形，拟染色体包围中心粒形成中心粒附属物；
The spermatocyte is of polygonal shape, which contains a centriole appendage formed by the chromatoid body's surrounding the centriole.
工蚁在次级精母细胞中最高，在精原细胞和初级精母细胞中较低。
In the workers, a strong expression of Bcl-2-like was shown in secondary spermatocytes, and a lower expression level in spermatogonia and primary spermatocytes.
应用界面铺浮技术制备出完整的家蚕精母细胞粗线期接合丝复合体。
Complete pachytene synaptonemal complexes from spermatocytes of the silkworm (Bombyx mori) are stretched out by water spreading technique.
浓缩铀uo_2f_2可诱发精原细胞和初级精母细胞的染色体畸变。
Enriched UO2F2 could result in chromosomal aberrations in spermatogonia and primary spermatocytes.
黄颡鱼初级精母细胞的前期出现联会复合体，应是同源染色体之间进行同源基因交换的标志。
The prophase of primary spermatocyte would appear synaptonemal complex, which should been the symbol that the homologous chromosome carried through the change of homologous gene.
笔者应用机械分离获得豚鼠单个初级精母细胞，采用全细胞式膜片钳技术记录该细胞离子通道电流。
Mechanical dissociation was used to obtain single primary spermatocytes from guinea pigs and iron channel currents in the primary spermatocytes were recorded by whole cell patch-clamp technique.
结果血清及睾丸局部T水平随攻虫剂量增加而明显降低，同时T受体表达代偿性增高（P<0.05），尤其在精母细胞；
Results Serum and local T decreased significantly as the injected dose increased, while its receptors increased(P<0.05), especially in spermatocytes;
结果血清及睾丸局部T水平随攻虫剂量增加而明显降低，同时T受体表达代偿性增高（P<0.05），尤其在精母细胞；
Results Serum and local T decreased significantly as the injected dose increased, while its receptors increased(P<0.05), especially in spermatocytes;
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