If a human–animal cybrid embryo were genotyped based solely on its mtDNA content, then genetically it would be deemed animal, especially if it were homoplasmic with only recipient oocyte mtDNA.

To answer this question, Hanna and his team set out to develop an ex utero embryo model. The team differentiated the human naïve ESC into four subpopulations and cultured them at specific ratios to ...

After years of trial and error, scientists have finally done something incredible: They have successfully grown human stem cells in a pig embryo. Why would anyone do this? Turns out, many ...

Certain types of TEs, such as LINEs and ERVL elements, are known to be active in early mouse and human embryos. For instance, mouse mERVL and its human cousin hERVL show similar behavior during EGA.