Wane Gashi Launi Yarinya Za Ta Yi?

Wadatacce

• Lokacin da Aka Sanya Launin Gashi
• Halitta 101
• Pigment
• Gashi na Baby da Gashi
• Zabiya
• Takeaway

Tun daga ranar da kuka gano kuna tsammanin, tabbas kuna mafarki game da yadda jaririnku zai iya zama. Shin za su sami idanunku? Gwanin abokin tarayya?

Lokaci ne kawai zai bayyana. Tare da launin gashi, kimiyya ba madaidaiciya ba ce.

Anan akwai wasu bayanai game da asalin halittar gado da sauran abubuwan da ke tantance ko jaririn zai zama mai farin gashi, mai launi, launin ja, ko kuma inuwa a tsakanin su.

Lokacin da Aka Sanya Launin Gashi

Anan ne zakaran gwajin dafi. Gaskiya ne ko karya: An saita launin gashin jaririn daga ɗaukar ciki.

Amsa: Gaskiya ne!

Lokacin da maniyyi ya hadu da kwan kuma ya bunkasa zuwa zaygote, yawanci yakan samu chromosomes 46. Wannan 23 ne daga uwa da uba. Duk halayen halittar jaririnka - launin gashi, launin ido, jima'i, da sauransu - tuni an riga an kulle su a wannan matakin farko.

Abin da ya fi ban sha'awa shi ne cewa kowane tsarin chromosomes da iyaye suka ba 'ya'yansu gaba ɗaya babu irinsu. Wasu yara na iya zama kamar iyayensu mata, yayin da wasu kuma suka fi na mahaifinsu. Sauran za su yi kama da cakuda, daga samun bambancin hadewar chromosomes.

Halitta 101

Yaya daidai kwayoyin ke hulɗa don ƙirƙirar launin gashi? Kowane ɗayan kwayoyin halittar ku na jaririn an yi shi ne da allele. Kuna iya tuna sharuɗɗan “rinjaye” da “sakewa” daga ajin aji na kimiyyar makaranta. Ana danganta rinjaye alleles da gashi mai duhu, yayin da alaƙar komputa suna da alaƙa da tabarau masu kyau.

Lokacin da kwayoyin halittu suka hadu, bayanin da ya haifar shine dabi'arka ta musamman ga jaririn, ko kuma dabi'arta ta zahiri. Mutane sun kasance suna tunani cewa idan ɗayan mahaifin yana da gashi mai laushi kuma ɗayan yana da gashi mai ruwan kasa, alal misali, mai komowa (mai farin gashi) zai rasa kuma mai rinjaye (launin ruwan kasa) zai ci nasara.

Kimiyyar tana da ma'ana, amma bisa ga Museum Museum of Innovation, yawancin abinda muka sani game da launin gashi har yanzu yana cikin matakin ka'idar.

Ya juya, akwai launuka daban-daban na launin ruwan kasa. Brown-ebony ya kusan baki. Brown-almond yana wani wuri a tsakiya. Brown-vanilla tana da farin gashi. Mafi yawan abin da zaku karanta game da kwayoyin halittar suna gabatar da launin gashi kamar dai mai rinjaye ko mai ragowa. Amma dai ba haka ba ne mai sauki.

Tun da yake yawancin layi suna wasa, akwai cikakkun damar launuka masu launi na gashi.

Pigment

Nawa ne kuma wane nau'in launin launi yake a cikin gashin mutum da yadda ake rarraba shi yana taimaka wajan kasancewa inuwar gaba ɗaya.

Ko da mafi ban sha'awa shine cewa yawan launin launin fata a cikin gashin mutum, yawanta, da rarraba shi na iya canzawa da haɓaka cikin lokaci.

Akwai launuka biyu da ake samu a gashin mutum:

• Eumelanin yana da alhakin sautunan launin ruwan kasa / baƙar fata.
• Pheomelanin shine ke da alhakin sautunan ja.

Gashi na Baby da Gashi

Idan ka jujjuya hotunan tsofaffin hotunan jariri na kanku, ƙila ku lura cewa kuna da haske ko duhu gashi a matsayin jariri. Wataƙila ya canza a cikin yarinku da kuma makarantan nasare. Wannan yanayin yana komawa zuwa launin launi a cikin gashi.

Wani binciken da aka buga a cikin Labaran Kimiyyar Sadarwa na Shari'a ya rubuta launin gashi na yara 232 farare, na tsakiyar Turai a Prague. Sun gano cewa yawancin yara, maza da mata, suna da duhu mai duhu a farkon rabin rayuwarsu. Daga watanni 9 zuwa shekara 2 1/2, yanayin launuka ya yi sauƙi. Bayan shekaru 3, launin gashi yayi duhu a hankali har zuwa shekaru 5.

Wannan kawai yana nufin cewa gashin jaririn na iya canza launuka 'yan lokuta bayan haifuwarsa kafin ya daidaita kan launi mai ɗorewa.

Zabiya

Yaran da aka haifa da zabiya na iya samun karancin launi a gashinsu, fatarsu, da idanunsu. Wannan matsalar ta samo asali ne daga maye gurbi. Akwai nau'ikan zabiya da yawa wadanda suka shafi mutane ta hanyoyi daban-daban. Yawancinsu an haife su da gashi fari ko haske, amma kewayon launuka kuma mai yiwuwa ne.

Wannan yanayin na iya haifar da matsalolin gani da hasken rana. Kodayake wasu yara an haife su da gashi mai haske mai haske, yara masu fama da albiniya yawanci suna da gashin ido da gashin gira.

Albiniyanci yanayin gado ne wanda ke faruwa yayin da iyayen duka suka wuce maye gurbi. Idan kun damu game da wannan yanayin, kuna so kuyi magana da likitanku ko mai ba da shawara kan kwayoyin halitta. Kuna iya raba tarihin lafiyar dangin ku kuma kuyi duk wasu tambayoyi da kuke da su game da cutar.

Takeaway

Don haka, wane launin gashi jaririn zai kasance? Amsar wannan tambayar ba ta da sauƙi. Kamar kowane halaye na zahiri, launin gashi na jaririn an riga an ƙaddara kuma an tsara shi a cikin DNA. Amma zai ɗauki ɗan lokaci don haɓaka cikakke cikin ainihin inuwar da zata kasance.