State briefly the similarity and difference in early embryonic development between frog and human.In some textbook,the process of mammal egg activation is metaphorized as “sperm kiss awakens the sleeping beauty”,how do you understand this metapho
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State briefly the similarity and difference in early embryonic development between frog and human.In some textbook,the process of mammal egg activation is metaphorized as “sperm kiss awakens the sleeping beauty”,how do you understand this metapho
State briefly the similarity and difference in early embryonic development between frog and human.
In some textbook,the process of mammal egg activation is metaphorized as “sperm kiss awakens the sleeping beauty”,how do you understand this metaphor?
Which system is firstly differentiated and formed during vertebrate development?
Cell proliferation 与renew的区别
State briefly the similarity and difference in early embryonic development between frog and human.In some textbook,the process of mammal egg activation is metaphorized as “sperm kiss awakens the sleeping beauty”,how do you understand this metapho
第一题从卵裂方式、囊胚的形成来答.提示:哺乳动物早期卵裂外层形成滋养层,后面发育为胎盘和和羊膜组织.内细胞团发育为囊胚.蛙类没有这一过程.
3 神经系统.
4 Cell proliferation指单纯的细胞分裂,数量增加.renew指的是细胞分裂时至少有一个细胞保持干细胞的全能性.