Transcription factors, which are the products of regulatory genes, implement the genomic code for development by determining the set of expressed genes, and thus biological function. The spatially ...

Gastrulation leads to three germ layers—ectoderm, mesoderm and endoderm—that are separated by two basement membranes. In the mouse embryo, the emergent gut endoderm results from the widespread ...

The third type of stem cells that make up the precursors of mouse embryos has been established for the first time Stem cells that give rise to the mouse yolk sac have been isolated and cultured in the ...

An unexpectedly versatile and regenerative stem cell in early embryos may be key to creating new effective fertility treatments, suggests a new study in mice from the University of Copenhagen. It ...

How did the gut, the skin and musculature evolve? This question concerns scientists for more than a century. Through the investigation of the embryonic development of sea anemones, a very old animal ...

Scientists revise the current textbook knowledge about gastrulation, the formation of the basic body plan during embryonic development. Their study in mice has implications for cell replacement ...