A variety of biology events occur during spermatogenesis , such as self - renewal of spermatogonia , meiotic division of spermatocyte and the spermiogenesis of spermatid 生精过程中发生了许多生物学的变化，如精原细胞的自我更新，精母细胞的减数分裂和精子细胞的变形。
2.
It can be concluded from the results that c - myc plays an important role in regulatin g the related genes in meiosis of spermatomeres and spermiogenesis and in regulating the secretion of the secretory cells in the spermatheca 从实验结果看， myc蛋白可能在减数分裂中激活相关基因，尤其是在精细胞形成早期可能参与了精细胞内大量的基因转录，还可能参与了受精囊囊壁上皮细胞的分泌活动。
3.
There are five developmental stages in the spermatogenesis , namely are primary spermatogonium , secondary spermatogonium , primary spermatocytes , secondaty spermatocytes and spermatids . the spermatids develop into sperm via the process of spermiogenesis . there exist cell junctions between two spermatids 电子显微镜观察表明：大眼鳜的精子发生和形成过程，经历了初级精原细胞，次级精原细胞，初级精母细胞，次级精母细胞和精子细胞阶段。
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In the present paper , some investigations on loxoblemmus doenitzi ( gryllidae ) are reported . in order to discover the meiosis of spermatomeres and spermiogenesis , slice - pressing method and improved phenol - fuchsin dyeing method are used . in the course of meiosis , primary spermatocytes directly enter metaphase ii , not through telophase i and prophase ii 本论文以直翅目、螽斯亚目、蟋蟀总科、蟋蟀科的多伊棺头蟋( loxoblemmusdoenitzi )为材料，采用压片法-改良苯酚品红染色，研究了精子发生过程中的减数分裂阶段和精子形成，发现初级精母细胞第一次减数分裂后不经过末期和前期直接进入中期。
