Xchromosomeinactivation12CONTENTDevelopmentandmechanismofXdeactivationThenewstudy01CHAPTERDevelopmentandmechanismofXdeactivation01DevelopmentXXXY>01Development010203XchromosomerandominactivationOccursearlyinembryonicdevelopmentThedaughtercellsremainthesameXinactivated01DevelopmentBarrbody01tortoiseshellcatXoXoO:browno:blackoragoutiXOYXOXozygote01MechanismXicXistexpressXistRNA01Question1.WhyisonlyoneXchromosomeinactivated?2.Howdoprogenitorcellsmaintainthesameinactivationprocess?02CHAPTERThenewstudy02ThenewstudyTHANKYOUTOWATCH