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. 2021 May 6;100(8):101227. doi: 10.1016/j.psj.2021.101227

Figure 1.

Figure 1

Representative images of blastoderm from intrauterine stages and following oviposition. (A) Stage II EG&K – meroblastic cleavage phase. (B) Stage VIII EG&K – area pellucida formation phase. (A) and (B) are intrauterine stages; images obtained from preserved samples of Kochav et al. (1980). (C) Stage XIII EG&K – hypoblast formation phase. Hypoblast is fully covering the ventral region of the epiblast. Image obtained from a freshly oviposited egg. Abbreviations: AO, area opaca; epi, epiblast; hyp, hypoblast; SGC, subgerminal cavity.