Puas yog albino tsawg?
Puas yog albino tsawg?

Video: Puas yog albino tsawg?

Video: Puas yog albino tsawg?
Video: pua yog tim tub aib pog ntawv by paj vuam thoj sonie thoj zoo siab yaj nkauj tawm tshiab 2022 2024, Lub rau hli ntuj
Anonim

Albinism yog a tsawg pab pawg neeg muaj teeb meem caj ces uas ua rau tawv nqaij, plaub hau, lossis qhov muag muaj xim me me lossis tsis muaj xim. Albinism kuj tseem cuam tshuam nrog cov teeb meem tsis pom kev. Raws li National Organization for Albinism thiab Hypopigmentation, kwv yees li 1 ntawm 18, 000 txog 20, 000 tus neeg hauv Tebchaws Meskas muaj daim ntawv ntawm albinism.

Tsis tas li ntawd, ntau npaum li cas yog Albinism?

Hauv Tebchaws Meskas, kwv yees li ib ntawm 18,000 txog 20,000 tus neeg muaj qee yam albinism . Hauv lwm qhov chaw ntawm lub ntiaj teb, qhov tshwm sim tuaj yeem siab txog ib ntawm 3,000. Cov menyuam yaus feem ntau nrog albinism tau yug los rau cov niam txiv uas nws cov plaub hau thiab qhov muag xim zoo ib yam rau lawv haiv neeg.

Ib sab saum toj no, haiv neeg twg muaj albinos tshaj? Kev kis tus kab mob sib txawv ntawm albinism nws txawv heev ntawm cov pejxeem, thiab yog siab tshaj tag nrho hauv cov neeg ntawm sub-Saharan African qhovntsej thiaj tsis mob. Niaj hnub no, qhov nthuav dav ntawm albinism hauv sub-Saharan Africa yog nyob ib ncig ntawm 1 hauv 5,000, thaum nyob hauv Europe thiab Asmeskas nws yog 1 ntawm 20,000.

Ntawm no, vim li cas albino tsiaj tsis tshua muaj?

Txawm hais tias albino tsiaj yog qhov zoo nkauj, lawv qhov tsos tshwj xeeb ua rau muaj sia nyob hauv cov tsiaj qus nyuaj. Nov yog vim li cas: Lawv tsawg , tag nrho cov tawv dawb los yog daj ntseg thiab lub tsho tiv no muaj nqi los ntawm cov neeg tua tsiaj thoob ntiaj teb. Lawv tsis muaj kev camouflage, ua rau lawv lub hom phiaj yooj yim rau cov tsiaj txhu hauv hav zoov.

Puas muaj albino hauv txhua hom tsiaj?

Ib yam tsiaj uas muaj melanocytes tuaj yeem tau txais albinism. Qhov ntawd txhais tau tias yuav luag txhua hom tsiaj. Cov tsiaj reptiles, amphibians thiab qis vertebrates kuj yog albinos , tab sis cov kab mob no tseem tuaj yeem muaj lwm hom xim tsim cov cell ntxiv rau melanocytes, yog li lawv yuav tsis tshwm xim.

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