the young embryo "hatches" from this protective cover. "During this critical time window, extra sperm can intrude into the ...

Synchronizing preimplantation embryo development up to the blastocyst stage with uterine differentiation to the receptive state is an absolute requirement for successful implantation. Molecular ...

Around day five or six, the embryo reaches a stage called the blastocyst. At this point, it begins to break out of its outer shell, called the zona pellucida. This process is called hatching ...

Volume 17, Issue 3, on March 5, 2025, titled "Reproductive aging, preimplantation genetic testing for aneuploidy, and the ...

A somatic cell could be taken from the recipient individual, its nucleus inserted into an enucleated egg cell that is stimulated to begin dividing, and the resulting blastocyst-stage embryo then ...

“I was always interested in how cells decide their fate,” Zernicka-Goetz said. In the mouse developing embryo, she previously demonstrated a bias at the two-cell stage: one cell contributed more to ...