Shelby is an Assistant Editor for The Scientist. She earned her PhD from West Virginia University in immunology and microbiology and completed an AAAS Mass Media fellowship. View Full Profile. Learn ...
a: Lateral view of a 4-week embryo showing the relationship of primordial gut to yolk sac. b: Drawing of median section of the embryo showing the early digestive system and its blood supply.
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They Were Made Without Eggs or Sperm. Are They Human?The little clump of cells looked almost like a human embryo. Created from stem cells, without eggs, sperm, or a womb, the embryo model had a yolk sac and a proto-placenta, resembling a state that ...
A research team showed that, contrary to current models, one early embryonic cell dominates lineages that will become the fetus. Shelby is an Assistant Editor for The Scientist. She earned her PhD ...
Developmental origin and subtype function of cardiac macrophages. Embryonic development (E7.5-E12.5) revolves around the hematopoietic endothelium (HE) of the yolk sac (YS), which undergoes three ...
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