Skip Navigation

Little One Pregnancy Place  

Movie Theater

Cell Division


 

48 hours

From The Biology of Prenatal Development.Buy Now

Note: And so it begins!

Script: Approximately 24 to 30 hours after fertilization, the zygote completes its first cell division. Through the process of mitosis, one cell splits into two, two into four, and so on.

All ages referenced to fertilization, not last menstrual period.
 <  Previous  See Snapshots  Next  > 
Cell Division
Cell Division
( 48 hours)
Amnion and Germ Layers
Amnion and Germ Layers
( 7 days)
The Folding of the Embryo
The Folding of the Embryo
( 3 weeks)
The Heart in Action
The Heart in Action
( 4 weeks, 4 days)
Hand Plates and Cartilage
Hand Plates and Cartilage
( 5 weeks, 6 days)
Hand Movement
Hand Movement
( 6 weeks, 6 days)
Previous Set Previous Movie Next Set Next Movie
When does health begin? Find out now.
Tell your story. Create your own pregnancy calendar.