Then the one cell near Chalaza end, which was derived from basal cell, underwent perpendicular division again, together with cells derived from apical cell, they formed embryo proper, and then sequentially formed multicellular spherical proembryo, heart-shaped embryo, Torpedo-shaped embryo, mature embryo.

  • 由基细胞分裂来的近合点端的一个细胞再发生纵裂,和从顶细胞分裂来的细胞共同参与胚体的形成,进而产生多细胞球形原胚,心形胚,鱼雷形胚,成熟胚。

  • 互联网摘选 2025-01-19 23:48:42

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