After 24 hours of fertilization, the embryo must present the two pronuclei and the two polar corpuscles. These features would indicate that fertilization has occurred correctly in the laboratory.
Read the full article on: How To Choose The Best Embryo? Characteristics & Techniques ( 65).
By Andrea Rodrigo (embryologist), Marta Barranquero Gómez (embryologist) and Romina Packan (babygest staff).
Last Update: 12/31/2020