Science Quiz / Different types of Twins

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Can you name the Different types of Twins?

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Non-identical twins. Consequence of double ovulation. Also forms with separate placentas (40%)
Two blastocysts formed from the early embryo. Two fetuses formed in their own placentas. Completely separate but genetically identical (40%
Identical twins
Splitting in the Inner cell mass. Before or after the formation of the trilaminar disc
Embryos share the outer membrane of the placenta. But develop in their own placental sacs
Leads to conjoined twins. Here the twins can even share organs.
Babies in the sac together, split occurs later on in developlement

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