Synchronizing embryonic development until the blastocyst stage ... is unfavourable to blastocyst survival. In mice (top diagram), the uterus is receptive on day 4 of pregnancy or pseudopregnancy ...

they model embryonic development’s pre-implantation period, up to seven days post fertilization. While stem cell-based embryo models greatly extend the ability to study this period of development, ...

Programmable cellular models of embryos, known as embryoids, allow scientists to mimic the first few day of embryonic development. The project team, left to right: Ali Shariati, Sayaka Kozuki, and ...

During embryonic development, the intestine of the Drosophila fly divides into distinct chambers thanks to the formation of constrictions at specific points of the tissue. The Wingless (Wg) signaling ...

The findings help elucidate what happens during the earliest periods in development. “I was always interested in how cells decide their fate,” Zernicka-Goetz said. In the mouse developing embryo, she ...