Effectstars
Colorgrey

Image Identical-fraternal-sperm-egg about twins

Comparison of zygote development in monozygotic and dizygotic twins. In the uterus, a majority of monozygotic twins (60–70%) share the same placenta but have separate amniotic sacs. In 18–30% of monozygotic twins each fetus has a separate placenta and a separate amniotic sac. A small number (1–2%) of monozygotic twins share the same placenta and amniotic sac. Dizygotic twins each have their own placenta and own amniotic sac.

File extension DOCX refers to Microsoft Word file of most recent version
Learn more about files, files extensions and how top open file with unknown extensions at File Extension Database