Utshwala yinto eyingozi engangena phakathi kwanoma yiziphi izithiyo zomzimba kanye nobuthi bonke amaseli omzimba, kuhlanganise nobulili. Izingane, ezikhulelwe ngaphansi kokuthwala utshwala, zibhekiswe ekuhlakanipheni okunciphise futhi zikhukhumezekile , kanti ngezinye izikhathi zibe nezinkinga ezinkulu ekuthuthukiseni.
Ososayensi baye bafakazela umthelela omubi wokuphuza utshwala emaqanda abesifazane, utshwala bungaphazamisa ikhodi ye-gene ye-germ cell, okuholela ekutheni i-trisomy noma ezinye izinkinga. Njengoba amaqanda asekuseni abekwa yintombazane emaqanda ama-ovari kusukela ekuzalweni, khona-ke konke ukuphuza utshwala kungase kuthinte ingane.
Ukuphuza utshwala ngaphambi kokuhlelwa kokukhulelwa, owesifazane ubungozi bokuthi "ubuthi" ezinye zezintambo ezitholakala kalula ezintweni ezinobuthi. Kodwa ngenxa yemithetho ye-physiology, i-follicles enempilo ilula futhi imele kuqala emgqeni wokuvuthwa, futhi amaseli abathintekayo ahla futhi avuthiwe ngemva kweminyaka engu-30. Ngakho-ke, ukuthatha utshwala ebusheni ngaphambi kokuhlela izingane, kunamathuba aphezulu okubeletha ingane engelapheki esikhathini esizayo.
Umthelela omubi wotshwala eqanda ngenyanga yokukhulelwa kwengane, isb. ukuthatha iziphuzo ezidakayo kusukela ngosuku lokuqala lokuya esikhathini , owesifazane angabangela ukulimala okungenakuqhathaniswa nengane ekhulelwe iqanda kule nyanga. Umphumela wokuphuza utshwala eqanda uholela ekubhujisweni kwezibopho ezithile kwi-genetic code yeseli, ekushintsheni kokubunjwa kweprotheyini, okungukuthi. umthombo wezakhi zomntwana ozayo.
Uma iseli elinomanyolo lihlelwe ukuthi lihlakulele amawele afanayo, umphumela omubi wokuphuza utshwala ekukhulelweni kuholela ekuzalweni kwamawele e-Siamese.
Kuyaziwa ngomphumela omubi wokuphuza utshwala ngesidakamizwa ekukhulelweni kwengane. Utshwala izinto zenza "ngokuthakazelisayo" kumaseli wesilisa, isb. ukwandisa umsebenzi wabo, kodwa ngesikhathi esifanayo ubhubhise ulwazi lofuzo. Ngalokhu kwenzeka ukuthi i-spermatozoa "enobuthi" ingafinyelela ngokushesha futhi ifaka iqanda, kunokuba ilungu elilindelekile liseli. Le nqubo iphikisana nemithetho ye-physiology, ngaphansi kwezimo lapho i-spermatozoa ebuthakathaka ethwala i-RNA ehlanekezwa ingasebenzi kakhulu kunokuthi "abazalwane" abanempilo.
Umphumela wotshwala ngesikhathi ukhulelwe
Ukusebenzisa utshwala ngesikhathi sokukhulelwa, owesifazane ubangela ukulimala okungenakuqhathaniswa nengane yakhe.
Umphumela ophuza utshwala ekuthuthukiseni i-fetal awukwazi ukugwema, ngoba utshwala buyangena kalula emgodini ogwadule. Izikhathi eziyingozi kunazo zonke zingamaviki ayisithupha kuya ku-12-14, ngaleso sikhathi izigaba eziyinhloko zokwakheka kwezingane zenzeka.
Ingilazi yewayini ephuzwa emasontweni amabili okukhulelwa ngeke kubangele imiphumela emibi, ngoba Phakathi nalesi sikhathi, ingane ekhulelwe igxila emathanjeni omzimba esibelethweni futhi ayikwamukeli umsoco kumama.