Kusukela ezikhathini zasendulo, okhokho bethu babekholelwa ukuthi uma isimangaliso esinje ngekati elihle elinamehlo anemibala eminingi sihlala esakhiweni sokuhlala, lokhu kuyinhlanhla. Bheka nje lesi sithombe esimangazayo - ikati linamehlo amahle anemibala ehlukahlukene. Isimo lapho sisemakati iso ngalinye linombala walo libizwa i-heterochromia (kusuka egameni lesiGrikhi "heteros" lisho "okuhlukile", "okunye" negama elithi "chromium" lisho "umbala"). Ezilwaneni ezine-heterochromia, kukhona umbala ongalingani we-iris yeso, ngaphezu kwalokho, izingxenye zayo ezihlukile. Vumelana, muhle kanjani futhi uhlekise, noma, ukukubeka ngamagama alula, amakati abukeka epholile ngokumangazayo ngemibala ehlukile yamehlo. Amehlo angaqondakali, akunjalo?
I-Heterochromia yenzeka, okuyingxenye futhi okuphelele. Imvamisa, i-heterochromia ephelele ivela emvelweni, lapho iso elilodwa emakati liwolintshi ngokuphelele, liphuzi, liluhlaza okotshani noma liyigolide ngombala, elinye iso liluhlaza okwesibhakabhaka. Kaningi, izilwane ezifuywayo ezinoboya zine-heterochromia engaphelele, lapho kuphela ingxenye yeso ipendwe ngombala ohlukile, hhayi iso lonke.
I-Heterochromia ekati ayisona isifo
Umbala wamehlo ahlukene emakati awuthathwa njengesifo, ngoba ukungavumelani akuwuthinti nakancane umbono wekati. Lo mbala wamehlo angavamile, angajwayelekile, ngomqondo ongokomfanekiso, emakati awulutho nje olungumphumela wokushoda noma, kunalokho, ukugcwala kombala okhethekile wombala. Ngokwesayensi, i-melanin ibizwa nge-coloring pigment. Ngokuvamile, lesi simo siyabonakala kulawo mazinyane oke agula kakhulu. Nakani ngokukhethekile ukuthi ama-albino amhlophe kaningi ane-melanin encishisiwe, kuyenzeka nokuthi izinyoni zingabi nayo nhlobo. Lokhu kuchaza iqiniso lapho sibona Amehlo aluhlaza okwesibhakabhaka emakati amhlophe noma lapho iphesenti lombala omhlophe lisuselwe esikalini.
Futhi, amakati anombala we-tricolor anemibala ehlukile yamehlo. I-heterochromia etholakalayo noma yokuzalwa ivame ukubonwa kulezi zilwane.
I-heterochromia etholakalayo emakati, kungavela ekusetshenzisweni kwesikhathi eside kakhulu kwemithi ethile noma lonke uhla lwezidakamizwa. Lokhu kungenzeka emakati ngemuva kokugula kakhulu, ukulimala, noma ukulimala.
I-heterochromia engokwemvelo - into eyifa. Lapho usemncane emakati, lolu hlobo lwe-heterochromia aluzibonakalisi ngombala wamehlo kuphela, kepha ku-pigmentation enemibala eminingi ye-iris yeso, engabangeli ukuphazamiseka esilwaneni nhlobo. I-heterochromia yokuzalwa emakati amakati wokuphila.
Kumele kuqashelwe futhi ukuthi kunoma iyiphi i-heterochromia, kungaba yisifo esizuzwe ngofuzo, esitholakele, esiphelele noma esinqunyelwe, ikati kufanele likhonjiswe kudokotela wezilwane ukuze kutholakale imbangela yalesi sifo futhi kungafaki ukuba khona kwezifo zesibili ezingaba nomthelela ekuguqukeni kombala wamehlo esilwane.
I-Heterochromia emakati amhlophe
Amakati amhlophe ngokuphelele anamehlo ahlukile amise ngokuhlukile. Lokhu kwenzeka ngaphansi kwethonya le-W - White - isakhi esiyingozi kakhulu - esibusa, okubhekwa njengesiyingozi uma sikhona kolunye lwezinhlobo zaso - i-homozygous (kulapho kuphela lolu hlobo olulodwa lukhona emzimbeni wesilwane). Futhi yileli geni elingaba nomthelela ekufeni kwamazinyane angakazalwa, ngaphakathi kwesibeleko sikamama - ikati.
Ukucaca kombala kumakati amhlophe nakho kuukuthi izakhi zofuzo zalo, empeleni, zithathwa njengezinamandla kunazo zonke ezifuyweni futhi zinomthelela omkhulu ekuthuthukiseni iziqalo zesistimu yezinzwa emakati. Ngaphansi kwethonya lalesi sakhi sofuzo, izilwane ezifuywayo zingathola ushintsho olukhulu ezithweni zokuzwa nangokubona.
