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What is artificial Embryo Twinning?. Krine Mélanie Massiquot Quentin Xavier Elodie BIO AC 1 2014-2015. We will compare artificial and natural systems With artificial bissection : -Bissection of artificial embryos after fertilisation ( 2 methods ) With natural bissection :
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What is artificial Embryo Twinning? Krine Mélanie Massiquot Quentin Xavier Elodie BIO AC 1 2014-2015
Wewill compare artificialand naturalsystems • Withartificial bissection : • -Bissection of artificialembryosafterfertilisation ( 2 methods ) • Withnaturalbissection : • -Whatis the difference between true twinsand false twins
Bissection artificial: -Bissection of an embryo2 days after fertilisation -Bissection of an embryo5 to 7 days after fertilisation
Artificial bissection : (In vitro) Newborns are genecallyidentical
Some figures : • Between 1979 and 2009, twin births increased by 79% • late 2009 -210,693 families had at least multiple births: in 98% of cases, it resulted in twins • France has among its population, not less than 2 million twins
Dizygotic or Heterozygoustwins • Calledfraternaltwins • Difference: simultaneity of gestation • Eachdissimilargeneticheritage (differentgenes) • Can be of a differentsex or of the samesex
Conclusion : This technique : artificial embryo twinning allows to amplify opportunities for reproduction (in cases of infertility for example)