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LM of a stage 2, 2-cell embryo in vitro after first cleavage is complete and nuclei are apparent.



From: Veeck and ZaninovicÂ´, 2003. Reproduced with permission of the publisher, Taylor & Francis Group.



Keywords: blastomere cell membrane, cleavage complete, cytoplasm of blastomere, first polar body, nucleus, nucleus of blastomere, second polar body, subzonal space



Source: The Virtual Human Embryo.