Scientists have long observed that embryos of different species within a phylum look quite distinct at early and late developmental stages but resemble one another more during mid-embryogenesis, a ...

Home > Press release: The developmental hourglass has cellular ...

In the very first days of an embryo's existence, some genes get activated. Once they have accomplished their task, they are shut down forever, unlike most of our genes, which remain active throughout ...

PREVIOUS work on tissue cultures of the wild carrot has shown that the embryogenesis which occurs in such cultures is not fundamentally different from the same process in the ovule 1,2. It has also ...