Imiphumela yezokwelapha kanye nokwelapha
I-translocation elinganiselayo noma ye-chromosomal yisimo lapho ingxenye ye-chromosome ephukile futhi ixhunyaniswe kwenye indawo. Ngamanye amazwi, kusho ukuthi izingxenye zama-chromosomes amabili zishintshe izindawo. Ukudluliselwa komhlaba kungabi nengozi ngokuphelele noma kungabangela izinkinga ezinkulu zempilo, kuye ngezimo.
Uma kwenzeka, abantu abaningi bangakwazi ukudluliselwa ngaphandle kokuqaphela isimo.
Lokhu kuvame ukwenzeka ngokuthutha kabusha (noma okulinganiselayo) ukudluliselwa, uhlobo lokudluliswa kwe-chromosomal okwandisa ingozi yokulahleka okungajwayelekile .
Ngalokhu kubuyekezwa, ngcono ukuqonda kwakho ukuthi ukushintshwa okulinganiselayo nomthelela ongase ube nawo ekukhulelwe.
Yisho ukuthini ukuguqulwa okulinganiselayo
Ku-translocation elinganiselayo, umuntu ngokuvamile unezinto ezibonakalayo ezidingekayo ekukhuleni okujwayelekile - ucezu lwe-chromosome luvele luphulwe futhi luhlanganiswe nolunye. Kodwa-ke, lapho amaseli omuntu ehlukanisa ukudala amaqanda noma ama-sperm amangqamuzana wokukhiqiza, amaqanda noma ama-sperm amaseli angaqeda izinto ezakhiwe zofuzo noma alahlekelwe izinto eziphilayo, ezingabangela ukukhulelwa kwesisu kuye ngokuthi yiziphi i-chromosome nezakhi zofuzo ezichaphazelekayo.
Ukukhubazeka Kwezinto Eziphuthumayo Ezivamile
Ezingamaphesenti angaba ngu-4,5 kuwo wonke imibhangqwana enezinsizwa eziphindaphindiwe , omunye wabazali noma bobabili abazali banokushintshaniswa okulinganayo.
Ucwaningo luye lwabonisa ukuthi imibhangqwana enokushintshaniswa okulinganiselayo ingase ibe nemiphumela engafanele kunezibhangqwana ezingenakudluliselwa ngokulinganisela. Kunobunye ubufakazi bokuthi ukudluliselwa okulinganiselayo okubandakanya ama-chromosomes athile kungenzeka ukuthi kubangele ukuhlukumeza kwamanye amazwe.
Ukuhlola
I-translocation elinganiselayo itholakala ngokuhlolwa okubizwa ngokuthi i- karyotype lapho amasampula egazi kusuka kubazali bobabili ahlaziywa efuna ukudluliselwa.
Olunye ucwaningo lubonisa ukuthi ukudluliselwa okulinganiselayo kumama kungenzeka ukuthi kuhlotshaniswe nokuhlukunyezwa okuphindaphindiwe, kepha obaba bangaba yizinsimbi.
Ukwelapha
Ayikho ikhambi lokudluliselwa okulinganiselayo, futhi ezimweni eziningi, umphumela omubi kuphela empilweni yilezi zimo eziphuthumayo eziphindaphindiwe. Emibhangqwaneni ethintekile ngokushintshwa okulinganiselayo, izinkinga zithinta ukukhulelwa okuphumelelayo ngesikhathi esithile, kodwa ngokusobala ukuhlukumeza okungajwayelekile kungaba nzima ukubhekana nomzwelo.
Ukukhubazeka okuvamile kungabuye kube nemiphumela engokwenyama. Kwabesifazane abathile, ukukhubazeka okuphindaphindiwe kungabangela izinkinga, ezifana nokwakhiwa kwezicubu ezibomvu ngemuva kweD & C. Ngakho-ke, imibhangqwana ene-translocation eyaziwayo eyaziwayo esaba kokubili ukuhlukunyezwa ngokomzwelo nangokwenyama okuphindaphindiwe okuphindaphindiwe nokukhulelwa kungaholela kungase kufune ukuhlola izindlela eziningi zobuchwepheshe zokuphatha ukukhulelwa kuze kube yisikhathi.
Izindlela zokwelashwa eziphezulu
Kwezinye izimo, imibhangqwana ene-translocation elinganiselayo ingakhetha ukwelashwa okuthiwa i- preimplantation genetic diagnosis (PGD) . Ku-PGD, lo mbhangqwana ukhulelwa nge-in-vitro fertilization kanye nokuhlolwa kofuzo emibungu ukuze kuqinisekiswe ukuthi awunayo i-translocation engalingani.
I-PGD ne-IVF zombili zibiza kakhulu, kodwa, futhi zingabhekwa ngumshuwalense isikhathi esiningi, esinye isizathu sokuthi kungani imibhangqwana eminingi iphoqeleka ukuba iqhubeke ngaphandle kokungenelela.
Uma kuthiwa, ungase ukwazi ukuthola izikweletu ezizosiza ukukhokhela lezi zinqubo, zicele izibonelelo ezibambisene ezidinga i-IVF noma ugcine imali yakho futhi ubike izindleko zakho zezokwelapha njengokwenyuswa kwentela uma zidlula amaphesenti angu-10 akho ukulungiswa kwemali engenayo.
Umthombo
> Gardner RJM, Sutherland GR, Shaffer LG. Ukungahleleki kwe-Chromosome nokululekwa kwezakhi zofuzo. 4. I-New York: I-Oxford University Press; 2012.