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Keywords: Extra-embryonic tissues
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Journal Articles
Journal: Development
Development (2012) 139 (6): 1059–1069.
Published: 15 March 2012
...Claudio D. Stern; Karen M. Downs When amniotes appeared during evolution, embryos freed themselves from intracellular nutrition; development slowed, the mid-blastula transition was lost and maternal components became less important for polarity. Extra-embryonic tissues emerged to provide nutrition...
Journal Articles
Journal Articles