Bütün memelilerin embriyo ve fetüsleri oldukça benzerdir.
- The embryos and fetuses of all mammals look quite similar.
Gelişmekte olan bir embriyo, göbek kordonu yoluyla plasentaya bağlanır.
- A developing embryo connects to the placenta via the umbilical cord.
it dives into the heart of the observed, and there espies evil, as it were, in the first embryo.
True hybrid embryos are the result of fertilising an egg with the sperm of another closely related species; for example, a mule is the hybrid offspring of a donkey and a horse.
MPs pushed back the boundaries of science last night when they voted to allow the creation of hybrid embryos, which have a combination of human and animal DNA, as well as saviour siblings to save sick children.