This process of creating new identical cells continues, so that by the 4th day after fertilisation the conceptus becomes a group of about 16 to 20 cells, called a 'morula' (or a 'ball of cells').
(post com data alterada - publicado a 04/08/2006)
(post com data alterada - publicado a 04/08/2006)
Etiquetas: 1ª gravidez, 2 semanas
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