打开App
360P
第191期北大三院唐大夫谈生育：第一次减数分裂分裂期- 末期
末期，到达两极的染色体又聚集起来，重现核膜、核仁，然后细胞分裂为两个子细胞，这两个子细胞即为次级精母细胞，每个次级精母细胞容纳单倍体染色体，每个染色体由两条染色单体组成，这两条染色单体靠着丝粒相连
北大三院唐文豪大夫科普合集四：男性生育相关基础知识18/73
App00:59
App00:59
App00:29
App00:26
App00:38
App00:39
App00:34
App00:41
App00:23
App00:55
App01:35
App00:50
App01:17
App00:52
App01:13
App02:12
App01:22
App00:35
App00:31
App01:09
App01:19
App01:32
App00:42
App01:46
App00:44
App00:35
App00:34
App00:47
App00:44
App00:50
App00:50打开App观看
