After a day or so, these nascent embryos are carefully examined in an effort to distinguish between any that are defective and those that seem to be healthy and most likely to implant and develop.
Aptuveni pēc diennakts visi embriji tiek rūpīgi pārbaudīti, lai noteiktu, vai tiem nav kādas patoloģijas, kuri no tiem ir visveselīgākie un kurus ir vislielākās izredzes implantēt.