Amathambo amaninzi abangelwa yi-chromosomal engafanelekiyo
I-Chromosomal engafanelekiyo yinto eqhelekileyo yokukhulelwa kwesisu kunye nokuzala. Ngenxa yokuba ezininzi iintsana zizalwe ngeemeko zofuzo ezifana ne-Down Syndrome kunye nezinye izifo, kuba kutheni ezinye izinto ezingafaniyo zikhokelela ekuphumuleni komzimba?
Iingxaki zeCromosome ezichaphazelekayo zokutshatyalaliswa kwabantu
Kukho konke ukuphuphuma komzimba kubangelwa, ukungaqhelekanga kwe-chromosomal kuthathwa njengeyona nkcazo edla ngokuba yintoni eyenzekayo.
Iingqinisiso zibonisa ukuba naphakathi kwama-40 no-75 ekhulwini kuwo onke ama-miscarriages abangelwa yimingcipheko ye-genetic kwi-baby development.
Kwiimeko ezininzi, izazinzulu aziyazi isizathu esenza ukuba i-chromosomal engaqhelekanga ibangele ukuphuma kwesisu. Enye imfundiso kukuba umzimba womzimba womama uyazibona ingxaki kwiijeni ezisakhulayo zezingane kwaye ngokugqithiseleyo iphetha ukukhulelwa.
Enye ingcamango kukuba umntwana okhulayo ekugqibeleni uya kufinyelela apho ingxaki ethile yemfuza ibangela umntwana ukuba ayeke ukukhula. Ezinye izakhi zofuzo zingase zilahleke eziyimfuneko ukuphuhliswa okuqhubekayo, okanye iikopi ezongezelelweyo zezilwanyana ezithile zingabangela ukuba umntwana okanye iplascent ikhule ngokungafanelekanga. Oku kunokuchaza isizathu sokuba ezinye iintlobo ze-chromosomal ezingaqhelekanga zikhokelela ekuphumuleni komzimba xa abanye bengenzi.
Impendulo elula kukuba "kwenzeka nje." Ulwahlulo lwamaseli luyinkqubo enzima kunye nezinto ezininzi ezinokungahambi kakuhle, ngoko kulandelelana ukuba ngamanye amaxesha izinto zihamba kakuhle.
I-sperm okanye iqela leqanda lingagqiba nenani elingalunganga lama-chromosomes okanye ngama-chromosomes alahlekileyo okanye amaqhekeza angaphezulu, ekugqibeleni aqhube phambili kubangela iingxaki ezifana nokukhulelwa komzimba, ukuzalwa komzimba okanye ukuphazamiseka komzimba.
Izinto zobungozi
Ininzi yexesha, abafazi abakhulelwe omnye abachaphazelekayo ngama-chromosomal abonakalayo baya kuqhubeka nokukhulelwa okuqhelekileyo ekubeni imiba ye-chromosomal inokuthi ihlelwe yintlekele kwimvelo.
I-Chromosomal engafanelekanga ayiyi kuphinda iphinde iphinde ingabikho kwakhona ngaphandle kokuba omnye wabazali okanye bobabili abazali banomlinganiselo olungelelanisiweyo okanye uhlobo olufanayo lwezofuzo.
Ubudala bomzali bubangelwa yingozi yokukhulelwa okuchaphazelekayo ngama-chromosomal. Kwizibini ezithatha umama ongaphezu kweminyaka engama-35, umngcipheko wokukhulelwa kwesisu ukhula kwaye ukungafani kwama-chromosomal okungaqhelekanga kubonakala kukuphakamileyo. Kubantu, ubudala apho izinga lokukhulelwa kwamaphulozo linyuka lingacaci kodwa lingaba ngaphezu kweminyaka engama-40 ubudala.
Abaphandi baphanda ezinye izinto ezinobungozi bokungabikho kwe-chromosomal, kodwa idatha ayifani. Ngokomzekelo, ukutyhila kwiimichiza ezinobuthi kunokunyusa umngcipheko we-chromosomal ongaqhelekanga, kodwa ulwalamano oluchanekileyo aluqondwa kakuhle.
Ukuba uzama ukukhulelwa kwaye uye wabhekana nokulahleka kwamathambo amaninzi ukufumana ukuthunyelwa kwingcali yokuzala okanye u-endocrinologist yokuzala. Ukuqwalaselwa komzimba ngokubanzi kunokukunceda ukucacisa nayiphi na into ebangela ukuba wena okanye iqabane lakho unakho. Ukuba kukho ingxaki kwi-genetic makeup yakho okanye amaqanda, ubuchwepheshe bokuzala bokuncedisa, njengokujonga i-embryo ngaphambi kokumiselwa, kunokukunceda ukufezekisa ukukhulelwa okufanelekileyo.
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