Ukukhulula amaqanda angaphezu kweyodwa ngenyanga kuyisici sezofuzo
Abantu banesifiso esikhulu mayelana nomndeni noma uxhumano lwezakhi zofuzo ukuze amawele abe amawele njengento ethakazelisayo.
Uma usola isixhumanisi sezakhi zofuzo, ulungile kancane, kodwa isixhumanisi sinzima kakhulu. Ngesinye, ama-geni angadlala indima ekutheni ube namawele omndeni (okuthiwa amawele angama-dizygotic) kodwa hhayi amawele afanayo (amawele e-monozygotic). Okwesibili, kubalulekile ukuqonda ukuthi kungase kube nezinye izinto ngaphandle kwamagciwane okwandisa ithuba lomama lokuba namawele.
Ingabe Kukhona "I-Twin Gene"?
Ngokusho kocwaningo lwezakhi zofuzo, ithuba lokuba namawele angamazwe cishe aphindwe kabili ngaphezu kwabesifazane abanina noma udadewabo ababenezinwele zomfowabo. Leli gama landa kakhulu ngenxa yesigcawu esikhuthaza ukukhulelwa komzimba-ngezinye izikhathi kubizwa ngokuthi "ifulethi lamawele."
Ukwehla komzimba ukuthambekela kokukhulula amaqanda angaphezu kweyodwa ngesikhathi sokuvuthwa, okwandisa amathuba okukhulelwa amawele angama-dizygotic (noma ama-fraternal). Ngakho-ke, emindenini lapho abesifazane banomkhuba wokwelapha, i-genetics ingachaza ngokwanele ukuba khona kwamawele omndeni .
Kodwa-ke, njengoba nje abesifazane besondeza, ukuxhuma kusebenza kuphela ohlangothini lomama womndeni. Ngenkathi amadoda engakwazi ukuthwala igesi bese edlulisela emadodakazini abo, umlando womndeni wamawele awubenzi ukuba babe namawele ngokwabo. Kodwa, uma ubaba edlula "ebelini lombili" ngeendodakazi yakhe, khona-ke angase abe nethuba eliphakeme kunalesijwayelekile sokuba namawele angokwenyama.
Ingabe Amawele Awela Esizukulwaneni?
Uma ubaba wakho engamawele kodwa awungenjalo, ingabe unamathuba okuba namawele? Kuyinto evamile yokungaqondi kahle ukuthi amawele awela isizukulwane emindenini. Akukhobufakazi obucacile, ngaphandle kokujwayelekile, lawo mawele angase akwazi ukuvela kuzo zonke izizukulwane. Kodwa-ke, uma ucabangela ithonya lokuhlukunyezwa kwezakhi zofuzo, leli phethini lingavela emindenini kuye ngokuthi ngabe izingane zabo zingamadodana noma amadodakazi.
- Isizukulwane 1: Umkhulu
Ugogo unesisindo se-hyperovulation. Yena no-Grandpa banamawele abafana, uRob noBob. - Isizukulwane 2: Rob & Bob
Ngenkathi amadodana kaGogo angase athwale isakhi sofuzo lokuxoshwa, azihambisi. Ngeke abe namawele (ngaphandle kwezinye izici). Nokho, ngamunye unendodakazi. - Isizukulwane 3: Molly & Polly
I-Molly ne-Polly, abazala, badla ifa lesandulela ngculazi okhokho babo. Ngamunye unesethi yamawele.
Ungabona ukuthi lesi sibonelo senza kanjani kubonakale ukuthi amawele awela isizukulwane emindenini. Iphethini ithonywe ukuthi ifa le-gene hyperovulation isilisa noma owesifazane.
Ingabe Kukhona Isixhumanisi Phakathi Kwamawele Efana Nama-Genetics?
Nakuba izinkolelo nokucwaninga zivame, akukho ukuxhumana okuqinisiwe phakathi kwe-genetics ne-twinning efana ne-monozygotic (efana). Ososayensi abazange bakhulume ngempela isizathu esizwakalayo sokubheka ama-monozygotic, okwenzeka lapho iqanda elikhukhulayo lihlukana futhi liba imibungu emibili (noma ngaphezulu).
Ngalesi sikhathi, i-twinning ye-monozygotic ibonakala isenzakalo esihleliwe, ngakho bonke abazali banethuba elinganayo lokukhulelwa amawele afanayo.
Uma Nginamawele Emndenini Wami, Ngingaba Namawele?
Ayikho indlela yokubikezela ngokuqondile ukuthi ngubani ozokwenza futhi angabe engaba namawele.
Uma kuthiwa, lapho ubala amathuba akho, cabangela lezi zici:
Uhlobo luni lweamawele emndenini? Khumbula, amawele e-monozygotic (afanayo) awasebenzi emindenini-ayengenangqondo. Awukwazi ukuthi ngabe izizukulwane zakho zazifana yini noma cha futhi azikho indlela yokukwazi ngokuqinisekile ngaphandle kokuhlolwa kwe-DNA. Lokho kuthiwa, amawele abelana ngokufana okufanayo ngokomzimba cishe angalingana kunokwenyama. Futhi, khumbula ukuthi amawele amantombazane / amantombazane ahlale ehlangane (i-dizygotic).
Ingabe amawele angumphumela wokusiza ukukhiqiza? Eminyakeni eyi-10 edlule, inani elikhulu lamabelethi amabili namabhethri anikezwa ngemithi yokwelapha kubandakanya izidakamizwa zokuzala kanye nokufaka umanyolo we-in vitro.
Isibonelo, imithi yokuzala i-Clomid ingashukumisa ukukhululwa kwamaqanda angaphezu kweyodwa ngesikhathi sokuvuthwa. Lokhu kungaholela emawele amawele uma amaqanda amabili ekhulelwa.
Ubani ohlangothini lomndeni lalinamawele? Uma amawele ekhona ohlangothini lomyeni wakho / lomlingani wakho, ngeke lithinte amathuba akho okuba namawele . Khumbula, isakhi se-hyperovulation yisisusa kuphela somama. Uma umama wakho (noma ugogo wakho noma ugogo wakho) wayenabo noma enezinwele zomzimba, ungase ube negesi. Kodwa umlando wendoda yomyeni wakho awunandaba nakancane nezingane zakho, ngaphandle kokuthi kungenzeka ukuthi kungenzeka ukuthi uzoba namazukulu amabili amafa-uma unendodakazi ezuza i-gene hyperovulation.
Izwi elivela ku-Verywell
Khumbula, umlando womndeni wamawele uyisinye sezici eziningi ezithinta ukubeletha okuhlukahlukene . Ubudala bomama, ubuhlanga, isisindo, ukudla, nomlando wokuzala konke kunomthelela ekwenzeni i-twinning futhi kungaba nomthelela onamandla kunomlando womndeni.
> Imithombo:
> I-American College ye-Obstetrics ne-Gynecologists. (Julayi 2015). Imibuzo Evame Ukubuzwa: Ukukhulelwa Okuningi.
> I-intanethi ye-Mendelian Online ku-Man (OMIM): I-Catalog Online ye-Genetic Human and Genetic Disorders. (Juni 2016).