He aha nā lauoho e kala ai kaʻu pēpē?

Anter

• Ke hoʻoholo ʻia ke kala o ka lauoho
• Nā Genetics 101
• Pigmentation
• ʻO ka lauoho pēpē vs. ka lauoho lauoho
• ʻAlamona
• Lawe ʻia

Mai ka lā āu i ʻike ai ke manaʻo nei ʻoe, ua moeʻuhane paha ʻoe e pili ana i ke ʻano o kāu pēpē. E loaʻa iā lākou kou mau maka? ʻO nā wili o kāu hoa?

Na ka manawa wale nō e haʻi. Me ka lauoho lauoho, ʻaʻole pololei ka ʻepekema.

Eia kekahi ʻike e pili ana i nā genetics maʻamau a me nā kumu ʻē aʻe e hoʻoholo ai inā he blonde, pēpē ʻulaʻula, a ʻulaʻula paha kāu pēpē ma waena.

Ke hoʻoholo ʻia ke kala o ka lauoho

Eia kahi quiz pop wikiwiki. ʻOiaʻiʻo a wahaheʻe paha: Hoʻonohonoho ʻia ka lauoho lauoho o kāu pēpē mai ka hapai ʻana.

Pane: ʻOiaʻiʻo!

Ke hui ka sperm me ka hua manu a lilo i zygote, loaʻa iā 46 mau chromosome. ʻO 23 kēlā mai ka makuahine a me ka makuakāne. ʻO nā ʻano moʻomeheu āpau o kāu pēpē - kala o ka lauoho, ke kala o ka maka, ka moekolohe, a me nā mea ʻē aʻe - ua laka ʻia i kēia wā mua.

ʻO ka mea ʻoi aku ka hoihoi o kēlā me kēia pūʻulu chromosome a nā mākua e hāʻawi ai i kā lākou keiki he kū hoʻokahi. Ua like paha kekahi mau keiki me ko lākou mau makuahine, ʻoiai kekahi e like me ko lākou makuakāne. E nānā nā mea ʻē aʻe e like me kahi kāwili, mai ka loaʻa ʻana o kahi hui ʻokoʻa o nā chromosome.

Nā Genetics 101

Pehea e pili pono ai nā gen i ka hana ʻana i ke kala o ka lauoho? Hana ʻia kēlā me kēia genes o kāu pēpē me nā alele. Hoʻomaopopo paha ʻoe i nā huaʻōlelo "koʻikoʻi" a me "recessive" mai ka papa ʻepekema kula papa. Pili nā alela Dominant me nā lauoho ʻeleʻele, ʻoiai nā alela recessive e hoʻopili ʻia me nā aka nani.

Ke hui nā genes, ʻo ka hopena hopena ka phenotype kū hoʻokahi o kāu pēpē, a i ʻole ke ʻano o ke kino. Manaʻo ka poʻe inā inā lauoho lauoho lauoho kekahi makua a lauoho ʻeleʻele kekahi, no ka laʻana, e nalowale ka recessive (blonde) a lanakila ka mea nui (brown).

He mea kūpono ka ʻepekema, akā e like me ka Tech Museum of Innovation, ʻo ka hapa nui o nā mea a mākou e ʻike ai e pili ana i ka waihoʻoluʻu o ka lauoho aia nō i ka pae kumumanaʻo.

ʻIke ʻia, nui nā ʻano ʻalani o nā kala. ʻAno ʻeleʻele ʻo Brown-ebony. ʻO Brown-almond kahi ma ka waena. ʻO ka Brown-vanilla ka lauoho maoli. ʻO ka hapa nui o nā mea āu e heluhelu ai e pili ana i nā genetics e hōʻike i ke kala o ka lauoho ma ke ʻano he mana nui a recessive paha. Akā ʻaʻole ia he maʻalahi.

ʻOiai ke pāʻani nei nā alela he nui, aia kahi laulaha piha o nā hiki ke kala o ka lauoho.

Pigmentation

Ehia a he aha ke ʻano o ka pigment i loko o ka lauoho o ke kanaka a pehea e puʻunaue ʻia ai e kōkua i ka hana ʻana i ka malu ākea.

ʻO nā mea hoihoi hou aʻe ka nui o nā pigment i ka lauoho o ke kanaka, kona kiʻiona, a me kāna hāʻawi ʻana hiki ke loli a ulu i ka manawa.

ʻElua mau pigment i loaʻa i ka lauoho o ke kanaka.

• Na Eumelanin ke kuleana no nā kani brown / ʻeleʻele.
• ʻO Pheomelanin ke kuleana no nā leo ʻulaʻula.

ʻO ka lauoho pēpē vs. ka lauoho lauoho

Inā ua hoʻohuli ʻoe i nā kiʻi pēpē kahiko o ʻoe iho, ua ʻike paha ʻoe he lauoho māmā a pouli kou i kou wā pēpē. Ua loli paha i kāu keiki kamaliʻi a me ke kula kamaliʻi. E hoʻi kēia i ka pigmentation i ka lauoho.

Ua hoʻopaʻa ʻia kahi noi i paʻi ʻia ma Forensic Science Communication i ke kala o ka lauoho o 232 mau keiki keʻokeʻo, waena-ʻEulopa ma Prague. Ua wehe lākou i ka nui o nā keiki, nā keikikāne a me nā kaikamahine, he lauoho ʻeleʻele i ka hapa mua o ke ola. Mai 9 mau mahina ma o ka makahiki 2 1/2, ua hoʻomālamalama ke ʻano o ke kala. Ma hope o ka makahiki 3, ua hele a poʻomanaʻo ka lauoho i ka makahiki 5.

ʻO kēia wale nō ka lauoho o kāu pēpē e loli paha i nā aka i kekahi mau manawa ma hope o ka hānau ʻana ma mua o ke kau ʻana i ke kala paʻa mau.

ʻAlamona

ʻO nā pēpē i hānau ʻia me ka albinism he liʻiliʻi a ʻaʻohe paha pigmentation i ko lākou lauoho, ʻili, a me nā maka. Hoʻokumu ʻia kēia maʻi e ka mutation gene. Nui a hewahewa nā ʻano albinism e pili i nā poʻe ma nā ʻano like ʻole. Hānau ʻia ka hapanui me ka lauoho keʻokeʻo a i ʻole ka māmā, akā hiki nō i ke ʻano o nā kala.

Hiki i kēia ʻano ke hoʻopilikia i nā pilikia o ka hihi a me ka ʻike o ka lā. ʻOiai hānau ʻia kekahi keiki me ka lauoho lauoho lauoho māmā, ʻo nā keiki me ka albinism e loaʻa i nā maka keʻokeʻo keʻokeʻo a me nā kuʻemaka.

ʻO Albinism kahi ʻano hoʻoilina e hana ʻia ke hala nā mākua ʻelua i ka hoʻololi. Inā ʻoe hopohopo e pili ana i kēia ʻano, makemake paha ʻoe e kamaʻilio me kāu kauka a i ʻole he kākāʻōlelo aʻoaʻo. Hiki iā ʻoe ke kaʻana i ka mōʻaukala olakino o kou ʻohana a nīnau i kekahi nīnau ʻē aʻe āu e pili ana i kēia maʻi.

Lawe ʻia

No laila, he aha ka lauoho kala e loaʻa i kāu pēpē? ʻAʻole maʻalahi ka pane i kēia nīnau. E like me nā ʻano o ke kino, ua hoʻoholo a kala ʻia ka kala o ka lauoho o kāu pēpē i kā lākou DNA. Akā e liʻuliʻu ka manawa e hoʻomohala piha i ke aka maoli.