Ziyini amawele e-monozygotic? Kungenzeka ukuthi uzwe leli gama elisetshenziselwa ukuchaza amawele, kodwa awuqiniseki ukuthi lisho ukuthini. Igama elijwayele futhi elivame ukusetshenziswa lalo mawele ngamawele "amawele afanayo ". Ngenxa yendlela amawele e-monozygotic akha ngayo, avame ukubukeka ngendlela efanayo futhi abe nezinye izinto ezifana nazo. Lokhu kungenxa yokuthi ifomu le-monozygotic livela eqenjini elilodwa elikhulelwe elihlukanisa ukwakha imibungu emibili eyaba yintsana ezimbili.
Ngenxa yokuthi laba bantu ababili bavela emthonjeni owodwa, babelana ngezakhi zofuzo ezifanayo futhi bangabonisa ukufana okumangalisayo. Ngakho, kubhekwa "okufanayo."
Izwi elithi monozygotic lichaza okungcono kwalolu hlobo lweamawele esikhundleni sokuzikhomba njengento efanayo. Nakuba amawele e-monozygotic afana kakhulu ngezindlela eziningi, awawona ama-clones. Ngisho noma bangase babheke ngokufanayo, babe nobuntu obufanayo, futhi bajabulele izithakazelo ezifanayo, bangabantu ababili abahlukile. Igama elithi monozygotic lichaza ngokunembile imvelaphi yabo. I-Mono = eyodwa, zygote = iqanda elikhulelwe. Zamawele aphethwe yiqanda elilodwa elikhulelwe.
Amawele E-Monozygotic Ayenzeka Kanjani?
Ake sibheke ukuthi lokhu kwenzeka kanjani. Ngenxa yokulala ngokobulili noma i-in vitro, isidoda esisodwa senza iqanda elilodwa (i-oocyte). Njengoba iqanda elivundisiwe (i-zygote) lihambela esibelethweni, amangqamuzana ahlukana futhi ahlanganiswe abe yi-blastocyst.
Futhi uma kwenzeka amawele e-monozygotic, ngenxa yezizathu ezingaqondakali ngokuphelele, i-blastocyst ihlukanisa izingxenye ezimbili ezihlukene ngokuphelele futhi ifomu njengezimbungu ezimbili ezihlukile. Umphumela omuhle? Amawele!
Ayikho incazelo yesayensi eyamukelwa ukuthi kungani lokhu kwenzeka noma ukuthi kubangelwa yini. Amawele e-monozygotic ngokuvamile ahlala engumfihlakalo.
Abathonywa yizinye izici eziningi ezifaka isandla ekukhanyeni, njengomlando womndeni , iminyaka yobudala, noma ukwelashwa kokuzala. Izinga le-twinning le-monozygotic lihlala lifanayo nakwezinye izinhlanga nabantu.
Amawele ama-monozygotic amelela kuphela amaphesenti amancane amawele. I-United States yabhala cishe ngo-132,000 amawele amabili okubeletha ngo-2013, okumele avele ku-33.7 kuzo zonke izingane zokuzalwa eziyi-1 000. Kodwa ama-3 noma 4 kuphela ku-1 000 angamawele e-monozygotic.
Ungayitshela kanjani ukuthi amawele ayinguMonozygotic?
Ngezinye izikhathi, kungenzeka ukunquma ukungabi nalutho ngesikhathi sokukhulelwa . Ngokuya ngesikhathi sokuhlukaniswa, amawele amancane okuthiwa i-monozygotic athuthuke nge-placenta eyodwa, eyabelwe futhi ehlanganiswe ku-chorion eyodwa noma i-amnion. Lezi zibonakaliso ze-telltale, ezibonakalayo kwi-ultrasound, zingakwazi ukubona amawele e-monozygotic. Kodwa kaningi, ayikaziwa. Ngisho nangemva kokubeletha, kungenzeka ukuthi akunakwenzeka ukusungula u-zygosity ngaphandle kokuqinisekisa nge-DNA test.
Nazi ezinye zezindlela ongazitshela uma amawele angama-monozygotic:
- Uma bengumfana nentombazane - kungenzeka ukuthi ayikho imonozygotic
- Uma banezinhlobo ezahlukene zegazi - AKAZI Monozygotic
- Uma kukhona i-placenta eyodwa - yi- PROBABLY monozygotic
- Uma kukhona ama-placentas amabili - angase abe POSSIBLY monozygotic
- Uma kukhona i-monochorionic - cishe i- Monozygotic ecacile
- Uma ziyi- monoamniotic - ziyi- Monozygotic ecacile
- Uma zibukeka ngendlela efanayo - ziyi-monozygotic e- POSSIBLY
- Uma ukuhlaziywa kwe-DNA kwembula izimpawu ezihambisanayo - ziyi- Monozygotic ecacile
- Uma ukuhlaziywa kwe-DNA kwembula ukungezwani kwamakaki - AKUSI ama-monozygoticMonozygotic amawele ahlale efana nobulili obufanayo. Ivela ku-zygote eyodwa, khumbula? Uma ihlukaniswa, i-chromosomes efanayo yobulili ikhona emibungu emibili. Yiqiniso, kunezinto ezingavamile kakhulu
Amawele e-Monozygotic ahlale efana nobulili obufanayo. Ivela ku-zygote eyodwa, khumbula?
Uma ihlukaniswa, i-chromosomes efanayo yobulili ikhona emibungu emibili. Yiqiniso, kunezinto ezingavamile kakhulu . Ziyinto engavamile, ukuthi akunakwenzeka ukuthi uzoke uhlangane nabo. Ngakho-ke, kuphephile ukucabanga ukuthi iqoqo lamawele omfana nentombazane aliyona i-monozygotic. Amawele ama-monozygotic angaba amantombazane amabili noma abafana ababili.
Ngokufanayo, amawele e-monozygotic ahlanganyela lonke i- DNA yawo. Ukufana kwazo zofuzo kufakazela ukuthi kungani bavame ukubukeka ngendlela ephawulekayo futhi ngokuvamile banesithakazelo esifanayo kanye nokuziphatha okufanayo. Ukuhlolwa kwe-DNA kuqhathanisa izimpawu zofuzo futhi kungaqinisekisa ukuthi amawele angama-monozygotic. Kodwa-ke, izakhi zofuzo aziqambi konke mayelana nomuntu, futhi kunezindlela eziningi amawele afanayo ahlukile komunye nomunye. Amathonya angokwemvelo, i-epigenetic divergences, nokuhlangenwe nakho kokuphila kwenza ukuhlukaniswa okubabeka njengabantu abahlukile.
Umthombo:
Ukwenziwa kwamawele. Uhlelo lwezempilo lweYunivesithi yasePennsylvania. I-Penn Medicine Medical Animation Library. Ifinyelele ngo-Julayi 7, 2015. http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000058&ptid=17
Martin, Joyce A., Hamilton, Brady E., Osterman, Michelle JK, Curtin, Sally C., noMathews, TJ "Ukuzalwa: Idatha Yokugcina ka-2013." Imibiko kaZwelonke yeVital Statistics , ngoJanuwari 15, 2015, Umq. 64, No. 1.
Izimo zamawele nge-twintype. Iziqu eziningi zaseMelika. Inhlangano kaZwelonke yamaMama wamawele amaClub. Kufinyelelwe ngoJulayi 11, 2015. http://www.nomotc.org/index.php?option=com_content&task=view&id=67&Itemid=55
> Ukuzalwa okuningi. Isigameko. I-Society of Obstetricians kanye namaGynecologists eCanada. Kufinyelelwe ngoJulayi 11, 2015. http://sogc.org/publications/multiple-birth/#incidence