If an egg is fertilized and implants into the uterine lining, the embryo forms a very early placenta. This early placenta ...

As division continues, some cells divide into the growing mass, distinguishing cells that form the embryo (epiblast) from those that form the placenta (trophectoderm). Further cell divisions lead to ...

Clumps of embryonic stem cells given one brief molecular stimulation start arranging themselves in a way that resembles a mouse embryo, down to the timing of when the cells switch on particular ...

The team found that 80% of the stem cells organize themselves into a structure that mimics the most basic form of an embryo after a few days, and most undergo gene activation that reflects the ...

Progressives often argue that no form of birth control — whether emergency ... redefining “pregnancy” to mean “the implantation of an embryo in the uterine lining.” ...

Researchers at Karolinska Institutet have developed a method that shows how the nervous system and sensory organs are formed in an embryo. By labelling stem cells with a genetic ‘barcode’, ...

Researchers have discovered that the earliest days of embryo development have a measurable impact on a person's future health and aging. Researchers from the University of Adelaide have discovered ...