Umbuzo: Nguwuphi umbala oya kuvela kumntwana wam umntwana?
Ukuba wena kunye nomlingani wakho unamahlo aluhlaza, ngaba uqinisekisiwe umntwana onobuhlaza obomvu? Mhlawumbi unamehlo omdaka kunye namaqabane akho ayingqimba ... ingabe amehlo akho omntwana aya kukhangela? Abazali abatsha bahlala bejonge amehlo abo umntwana ngokumangalisa kwaye bayamangalisa, kwaye bacinga ... ngaba amehlo omntwana wam aya kuhlala lo mbala? Umbala wam umntwana uza kuba njani?
Impendulo:
Ininzi intsha izalwe ngamehlo aluhlaza okwesibhakabhaka okanye i-grey, kodwa kuxhomekeke kumbala wamehlo akho kunye nomlingane wakho, banokwenza okanye bangayi kuhlala umbala wabo wokuzalwa.
Umbala Wamehlo 101
Amehlo akho athola umbala wabo kwi- iris . Iris yenziwe yimisipha, imithwalo yegazi kunye ne-pigment. I-pigment equlethwe kwi-iris ibizwa ngokuba yi-melanin. I-Melanin nayo i-pigment eyenziwa ngumzimba wakho ukuze unike isikhumba sakho kunye neenwele zabo umbala. Isixa (okanye ukungabikho) kwe-melanin pigment kwi-iris yakho inika umbala wayo. I-melanin pigment i-iris yakho iphezulu, isobala elimnyama neliso lakho. I-melanin encinci ye-pigment, iris iris i-blue igh. Ngoko akuwona umbala ohlukileyo we-pigment, kodwa inani elikunika umbala othile wamehlo.
Kwamehlo omntwana osandul 'usana , inqubo ye-pigmentation ye-iris ayigqibekanga. Iintsana ezinesikhumba emnyama zivame ukuzaliswa ngamehlo amnyama ahlale emnyama. Umbala we-Iris kwiintsana ezikhukhulayo ziqhelekileyo kumbala ohlaza okwesibhakabhaka okanye umbala obomvu ngokuzalwa, kwaye utshintshe ngokukhawuleza.
Ukuveliswa kwemveliso yaseMelanin kunyaka wokuqala wobomi, ngokuqhelekileyo kubangele umbala omnyama, onzulu. Kucatshangelwa ukuba njengokuba isikhumba sethu siqala ukuthunjelwa xa siboniswa yelanga, kunjalo ne-iris. Ukukhanya kwelanga kungakhuthaza ukuveliswa kwe-melanin, ngokokuba uphumelele kwihlabathi lenene, umbala wakho wamehlo uqala ukutshintsha.
Ukuba umntwana wakho unomlinganiselo omncinci we-melanin, uya kuba namabala aluhlaza okwesibhakabhaka. Ukuba nje i-melanin encinci ikhona, unokuba nemvi, eluhlaza okanye i-hazel. Ukuba unayo i-melanin engaphezulu, amehlo akhe anokukhanya kumnyama omnyama.
Nangona ukukhanya kuphazamisa umbala wamehlo, umbala wokugqibela unokulawulwa ngamajethi esiwazuze kubazali bethu. Umbala ongapheliyo wamehlo awusetyenziswanga ukuba umntwana abe ubuncinane ubuncinane beenyanga ezili-9 ubudala, ngoko ulinde de kube ngumhla wokuzalwa komntwana wakho ukuqinisekisa umbala wamehlo . Abanye abantwana baze batshintshe ukufikelela kwiminyaka emibini okanye emithathu ubudala. Phantse i-10% yabantu baqhubeka benemibala yenguqu yamehlo njengoko bekhula baba ngabantu abadala.
Umbala Wamehlo kunye neGenetics
Swayipha iwebhu kwaye uza kufumana amanqaku ambalwa ebalawuli bebala. Nangona uninzi lwabo lungasondela kumbala wamehlo umntwana wakho unokuba nawo, ingxaki enye uza kuyibona kukuba abaninzi bethu abanamaso omdaka okanye obuluhlaza. Amehlo akho abe ngumxube ohlaza okomhlaza ohlaza okwesibhakabhaka ngombala obomvu. Ingaba oko kubalwa njengoluhlaza, obomvu okanye obomvu?
Ukusebenzisa nje i-calculator akunakusebenza. Kwezinye iintsapho, ilifa lembala lemibala lilandela iipateni eziqikeleleke kakhulu kodwa kwezinye iindwendwe, kubonakala ingenangqiqo okanye ilandele imigaqo. Kwi-genetics, oku kuthiwa "i-polygenic". I-Polygenic ithetha ukuba kukho iindidi ezinzima ezibandakanyekayo ezibandakanyekayo ukudala umbala wamehlo.
Ukutsho nje ukuba umdaka unokuba lukhulu kwizinto ezimbala okwesibhakabhaka kwenza ukuba kuchazwe lula, kodwa lo mzekelo ungelula kakhulu kuzo zonke iintlobo ezibonakalayo ebomini bokwenene.
Musa ukuphazamiseka ukuba i-genetics iqikelele utshintsho kwimbala yelanga lakho. I-genetic elula kunye neyengqondo elula kakhulu eninzi esayifunda esikolweni isenokusondela ngokucacileyo ngombala wamehlo omntwana wakho. Ngokomzekelo, ukuba wena kunye namehlo omnye wakho unobumba obomvu, kodwa omnye wenu unomzali onamehlo aluhlaza, kusekho nethuba elincinane lokuba amehlo omntwana wakho aya kuhlala eluhlaza okwesibhakabhaka. Ukuba unayo ibhola kwaye iqabane lakho linomdaka, amehlo akho umntwana usenethuba elingama-50%.
Ukuba bobabini kunye nomlingane wakho unamehlo aluhlaza, amehlo akho umntwana akanakutshintsha kwaye ahlale eselumhlaza okwesibhakabhaka!
Umthombo:
Mats, uRichard A noLarsson Sturm. I-Melanoma yeSeli, "i-Genetics yombala womntu iris kunye neepateni." I-Melanogenix Group, i-Institute for Molecular Bioscience, iYunivesithi yaseQueensland, eBrisbane, e-Australia, iphepha 544-562.