Prior to the appearance of the primitive streak. An “embryonic shield” may be visible, due to the ac- cumulation of cells toward thc posterior half of the blastoderm.
Prior to the appearance of the primitive streak. An “embryonic shield” may be visible, due to the ac- cumulation of cells toward thc posterior half of the blastoderm.
Sebelum penampilan primitif beruntun. Sebuah "perisai embrio" dapat terlihat, karena ac- penumpukan sel menuju setengah posterior THC dari blastoderm tersebut.