Science Quiz / Different types of Twins

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Can you name the Different types of Twins?

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

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