This study provides a valuable new resource to investigate the molecular basis of the particular features characterizing the pipefish embryo. The authors found both unique and shared gene expression ...

distinguishing cells that form the embryo (epiblast) from those that form the placenta (trophectoderm). Further cell divisions lead to the formation of the primitive endoderm, which forms a blastocyst ...

For several years, researchers studied human embryonic stem cells (ESCs) to understand the unique features of these pluripotent cells, but on their own, they poorly resembled the complex structures ...

For one thing—and for reasons not fully understood—the surest way to keep these cells alive is to place them on a layer of other cells taken from mouse embryos, a time-consuming requirement.

In one of the largest studies of its kind during embryonic development, Furlong and her team recently examined nearly 600 ...

Embryos with milder OGT mutations survived ... XCI occurs in female mammalian cells where one copy of the X chromosome is randomly inactivated. This ensures that females activate the same level ...