1.During early proembryo stage, the dorsiventrality appears in the proper of the embryo. On the ventral side, the cells are small with dense cytoplasm and few vacuoles.
原胚初期胚体出现背腹极性,腹面的细胞小,细胞质稠密,液泡较少;
2.During early proembryo stage, the dorsiventrality appears in the proper of the embryo. On the ventral side, the cells are small with dense cytoplasm and few vacuoles.
原胚初期胚体出现背腹极性,腹面的细胞小,细胞质稠密,液泡较少;