שאלה | 65. In the field of stem cell derived embryo models (SEMs), what is the difference between blastoids and ETX embryos?

65. In the field of stem cell derived embryo models (SEMs), what is the difference between blastoids and ETX embryos?

		Blastoids are derived from embryonic and extraembryonic stem cells and model post- implantation stages, while ETX embryos model only the blastocyst stage.
		ETX embryos are assembled from embryonic stem cells (ESCs), trophoblast stem cells (TSCs), and extraembryonic endoderm (XEN) cells to model early post-implantation development, while blastoids mimic the structure and lineage composition of the blastocyst.
		Both blastoids and ETX embryos originate from somatic cell nuclear transfer and are used to model human implantation stages
		Blastoids are created from germ cells and model gastrulation, while ETX embryos are generated from stem cells and model late implantation