The zygote is a structure that is formed after fertilization and that will give rise to the embryo in the division process.
In IVF laboratories, 2 pronuclei and 2 polar bodies have to be observed in order to know if fertilization has taken place correctly.
Read the full article on: How are embryos classified according to their day of development? ( 63).
By Alicia Francos Pérez M.D., M.Sc. (gynecologist), José Luis de Pablo B.Sc., M.Sc., Ph.D. (senior clinical embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist), Cristina Algarra Goosman B.Sc., M.Sc. (psychologist) and Michelle Lorraine Embleton B.Sc. Ph.D. (biochemist).
Last Update: 04/16/2020