4.合子(ygote)): 精子与卵子结合形成雌性原核与雄性原核 的共同体,尚未进行卵裂。 First polar body Cortical Female Sungamy reaction pronucleus Cleavage Cortical Male granules pronucleus Second Activated spermatozoa ba啥子
4.合子(zygote): 精子与卵子结合形成雌性原核与雄性原核 的共同体,尚未进行卵裂。 合子
5、受精卵(ygote): 精子和卵子结合形成合子,合子进行卵 裂所形成的结构。 First polar body Cortical Female Syngamy reaction pronucleus Cleavage furrow Cortical Male granules pronucleus Second Activated polarbody 受精卵 spermatozoa
5、受精卵(zygote): 精子和卵子结合形成合子,合子进行卵 裂所形成的结构。 受精卵
受精过程The Process-Egg ()Capacitation(获能) ② Nucleus approaches Neck (2)Hyperactivation(卵活化) he egg the eqg's jelly coat (3)zona binding(透明带结合) ③ Acrosome Mitochondrion Tail (4)acrosome reaction Proteins or t上eenm (顶体反应) head bind to receptor (5)zona penetration (穿过透明带) plagma membtane ④ (6)sperm-oocyte membrane fusion Vitelline layer (精卵膜融合) Jelly coat The plasma membraneg of the per and egg fure (T)sperm engulfed(精子卷入) Egg Nucleus (8)decondensation of sperm nucleu EGG CELL (精子核松散) The nuclei of the spem and egg fuce⑦ 5The pnclu ete the (9)formation of male pronucleus egg cytoplasm (雄原核形成) Zygote Nucleus (6)Afertilization membtane forms
受精过程The Process - Egg (1) Capacitation(获能) (2) Hyperactivation(卵活化) (3) zona binding (透明带结合) (4) acrosome reaction (顶体反应) (5) zona penetration (穿过透明带) (6) sperm-oocyte membrane fusion (精卵膜融合) (7) sperm engulfed (精子卷入) (8) decondensation of sperm nucleu (精子核松散) (9) formation of male pronucleus (雄原核形成)
Fertilization of a Xenopus Egg First polar body 2nd meiotic spindie Sperm 受精视频
受精 视频
(二)配子与受精卵的运行 1、射精: 公畜与母畜交配,将精子通过尿生殖道排出体外, 输送到母畜生殖道的过程。 糖
(二) 配子与受精卵的运行 1、射精: 公畜与母畜交配,将精子通过尿生殖道排出体外, 输送到母畜生殖道的过程。 精 液