Yini ezokwethula izakhi zofuzo?
Sekuyisikhathi eside ososayensi be-Genetics babala ukuthi kungenzeka ukuthi umbala uzoba yini umbala enganeni, futhi babhale ukubuka kwabo etafuleni, okushiwo ngezansi:
Wonke umuntu uyazi ukuthi umbala weso ophezulu okhona emhlabeni uwuhlaza. Ngakho-ke, uma omunye wabazali abanamahloni, khona-ke amathuba okuba nosana olunamehlo aluhlaza kakhulu. Ngisho nabanikazi bamehlo aluhlaza banethuba lomntwana onobuhlungu , nakuba kunjalo, okuncane.
Okuthakazelisayo kakhulu yimbono yezimfanelo ezidlula futhi eziphambene nalokhu. Umuntu ngamunye unesethi ethile yezakhi zofuzo. Ngamunye wabo uqukethe ulwazi lokuthi, kuye ngokuthi isimo, singagudluzwa noma, ngokuphambene nalokho, silawula. Ngokwale mbono, ungathola ukuthi yiziphi amehlo ingane ezoba nayo embala, ukuma kanye nobude be-eyelashes. Ukuze uthole imininingwane eyengeziwe, cabanga ngezibonakaliso eziqakathekile futhi eziphambene netafula:
Kuyathakazelisa ukuphawula ukuthi isakhi sofuzo esingajwayelekile singabonakaliswa ngokungalindelekile esizukulwaneni esilandelayo, ngezinye izikhathi kuholela ekuphazamiseni imibhangqwana ethile enomntwana onemibala ehlukile.
Umbala wamehlo ushintsha kanjani?
Thola ukuthi yiziphi amehlo ingane ezoba nazo, lapho ezalwa, ngeke isebenze. Zonke izingane zizalwa ngamehlo aluhlaza okwesibhakabhaka. Kuyinto engavamile ukubona ubuso obumnyama, cishe obumnyama. Lokhu kuvamile kubantwana abanesikhumba esimnyama, lapho kukhona inani elikhulu le-melanin emzimbeni. Kusukela ngenyanga yesithupha yokuphila, amehlo e-crumb aqala ukushintsha, futhi umbala uhlelwe enganeni eyodwa ngonyaka, kanti ezinye zibe ezimbili noma ezintathu. Kungani lokhu kwenzeka eminyakeni ehlukene, kuze kube manje ososayensi abazange banikeze incazelo esemthethweni.
Kuyinto engavamile ukuthola abantwana abanobuhlobo babo obuye bavuzwa ngamehlo angavamile: omnyama-ophuzi noma obomvu-kara-oluhlaza. Kokubili nalabo nabanye, batholakala emhlabeni futhi akusiyo i-anomaly, kodwa abantu abanamehlo anjalo bangashadile.
Ngaphezu kwalokho, ngifuna ukuqaphela ukuthi imvuthuluka ingashintsha umbala wamehlo emibili: izifo ezidlulayo nezifo zamehlo, ezingathinta ukushintsha kombala ku-iris.
Impendulo engu-100% yombuzo wokuthi umbala amehlo okufanele abe nawo kumntwana ngeke unikezwe kuwe. Ngosizo lwezakhi zofuzo kuyokwenzeka kuphela ukuba ucabange amathuba okuzalwa komntwana ngalokhu noma lowo mbala, futhi ukubona ukuthi kuzoba yini ngokuqinisekile, ungayibheka eminyakeni emibili noma emithathu.