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Chapter 8 - Timing of Embryo Culture

Published online by Cambridge University Press:  15 April 2021

Kersti Lundin
Sahlgrenska University Hospital, Gothenburg
Aisling Ahlström
Livio Fertility Center, Gothenburg
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Following the fusion of the oocyte and spermatozoon and successful oocyte activation, preimplantation development begins with the formation of the zygote, displaying two pronuclei and two polar bodies if correctly fertilized (Figure 8.1). Embryo development continues with the onset of cleavage, i.e., consecutive mitotic divisions, leading to a major wave of embryonic genome activation between the 4- and 8-cell stages on Day 3 of development.

Publisher: Cambridge University Press
Print publication year: 2021

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