Ngaba Ngaba ngokwenene uyazi ukuba amawele akho angabonakaliyo okanye asemzimbeni?
Ngaba amawele akho afanayo okanye asemanyeneyo? Ingaba uqinisekile? Mhlawumbi unokrokrela ngokusekelwe kukujonga kwakho, okanye mhlawumbi waziswe ngugqirha wakho ngexesha lokukhulelwa okanye kungekudala emva kokuzalwa. Kodwa uphando lufumanise ukuba phantse iipesenti ezili-15 zabazali babengazi kakuhle malunga neengxaki zamathambo abo omntwana. Kwinkoliso yamatyala, abazali babethetha ngokuphosakeleyo amawele abo afanayo.
Ezi ziphumo azikho into emangalisayo. Kukho ubungqina obuninzi malunga nobunzima , kwaye kungekhona nje kubemi bonke. Nangona abantu abaninzi banokudideka malunga nawaphi amawele afanayo kunye nobudlelane, ngokunjalo namanye amawele kunye nabazali bawo abayiqondi i-twintype. Kwaye ngakumbi nakakhulu ... abanye oogqirha benza ngokungenakulungelelaniswa malunga nendlela yokuhlukanisa phakathi kwamawele e-monozygotic kunye nama-dizygotic.
Ziyintoni i-Zygosity
Uninzi lwabantu luyaqhelana nemigangatho efana neyobudlelane , esetyenziswe ukuchaza iintlobo zamawele. Bacinga ukuba amawele afana ngendlela efanayo, kunye namawele angenabo. Kodwa uhlobo lohlobo lweewele luyi-classification of zygosity kwaye luchazwe ngendlela amawele afana ngayo, kungekhona ngento ebonakala ngayo.
Ifom ephindaphindiweyo ye- Monozygotic xa iqhekeza elilodwa lityalwe, liphumela ekuphuhlisweni kweembumba ezimbini okanye ngaphezulu. Ngenxa yokuba zivela kwisethi enye yeeseli, abo bantu bane-DNA efanayo kwaye kaninzi banokubonakala okubonakalayo okubonakalayo.
Yingakho baziwa njengamawele afanayo. Kodwa ukubonakala akukona nje kusekelwe kwiimpawu zobomi; Amawele afanayo akafaneki ngokuchanekileyo. (Fumana ukuba kutheni amawele afanayo ahluke .)
Iipilisi ze-Dizygotic okanye i-multizygotic izidalwa zizinto ezizimeleyo ezenzekayo xa amaqanda amaninzi azaliswa kwaye aphuhlise.
Ifa labo lemfuyo lifana naliphi na abantakwabo, malunga ne-50% yeDNA yabo efanayo. Bangabonakala ngokufanayo, ngendlela efanayo abantakwabo abathandana ngayo. Okanye, babonakala behluke ngokupheleleyo. Ziyaziwa ngokuba ngamawele okanye ama-multiples.
Indlela yokwazi ngokuqinisekileyo
Indlela yodwa yokufumanisa i-zygosity ngokuqinisekileyo nguvavanyo lwe-DNA. I-Monozygotic - okanye i-twins efanayo okanye iphindaphindiweyo iya kuba ngumdlalo opheleleyo, ngelixa iindidi ezininzi ze-dizygotic ziza kubakho ezinye izikhombisi-ndlela eziza kunika ubungqina obucacileyo. Ezi zikhombo zingabonakala kwi-ultrasound ngexesha lokukhulelwa, okanye zivezwe kungekudala emva kokuziswa ngexesha loviwo lwepentecenta.
Ngethuba lokukhulelwa, ukufakelwa kweqanda oluchumayo kwi-uterus. Njengoko iiveki ziqhubela phambili, i- placenta ikhula eludongeni lwesisu somama ukunyusa umntwana. Ukongeza, i-fetus iqulethwe kwi- amnion , ingxowa yamanzi. Amawele e-Monozygotic angaba ne-placenta, okanye i-amnion, ngokuxhomekeka xa iqanda lihlukana emva kokukhulelwe. Ekuqaleni iqanda liyahlukana, ngaphantsi kweentsana ziya kubelana ngesisu; malunga nama-25% amawele e-monozygotic akhula kwiingxowa ezihlukeneyo, kunye neeplacenta ezimbini. Kodwa xa iqanda lizahlula kamva, phakathi kweentsuku ezine ukuya kwezingu-8 emva kokukhulelwa, iintsana zinokwabelana nge-placenta, i- chorion (i-membrane yangaphandle ye-sac amniotic) okanye i-amnion (umlenze wangaphakathi we-sac amniotic).
Ngamanye amaxesha i- ultrasound ukukhangela ngexesha lokukhulelwa kunika ingqiqo ukuba ngaba amawele angama-monozygotic okanye i-dizygotic. Ukuba kubonakala kwi-ultrasound ukuba kukho ipentecenta enye, kunokugqitywa ukuba ziyi-monozygotic - efanayo. Nangona kunjalo, ubukho beepalcentas kabini hayikho ngokugqibeleleyo; iimbini ze-monozygotic kunye namawele e-dizygotic angabonakalisa ngamapentecenta amabini. Ngelishwa, oogqirha abaninzi bacinga ukuba i-placentas emibini ibonisa amawele e-dizygotic. Uphononongo luka-2004 lwafumanisa ukuba oogqirha abangaphezu kwama-80% bakholelwa ukuba amawele aneentente ezimbini zinobuhlobo. Abazali abathatha amawele abo bahlobo olusekelwe kulolu hlobo lweenkcukacha eziphosakeleyo kumniki-nkonzo wabo wezonyango banokungachazwanga.
Kutheni Kubalulekile
Kulo maninzi abantu, ukugqiba i-zygosity nje ngumcimbi wokwanelisa umdla. Amawele afuna ukuqinisekisa imvelaphi yabo, okanye abazali banokufuna ukunika impendulo echanekileyo kumbuzo okhoyo. Kodwa ngezinye iimeko, ukusekwa kwesigxina kunokubonelela ngokucacileyo kwizigqibo zonyango, njengokwenzeka kwilungu okanye ukutshintshwa kwezicubu.