blastocyst 的定义
Embryology.
- the blastula of the mammalian embryo, consisting of an inner cell mass, a cavity, and an outer layer, the trophoblast.
更多blastocyst例句
- A research team based in Australia and Italy described animal experiments in which 1 in 4 vitrified cow eggs were fertilized and later grew, by around day 5, to the blastocyst stage.
- Though they didn’t get beyond the blastocyst stage, both models are by far the most complete replicas of an early human embryo to date.
- Back in 2018, a team grew similar blastocysts from mouse stem cells—an admirable effort, but not a perfect model as mice and humans have different development trajectories.
- Scientists know that during a pregnancy, a fertilized egg develops into a blastocyst around day four, and it then implants around day eight.
- For instance, last week, Zernicka-Goetz posted a preprint describing how her lab coaxed stem cells to self-assemble into a version of a human blastocyst, as a week-old embryo is known.