Dab tsi yog alleles rau mob kab mob ntshav qab zib?
Dab tsi yog alleles rau mob kab mob ntshav qab zib?

Video: Dab tsi yog alleles rau mob kab mob ntshav qab zib?

Video: Dab tsi yog alleles rau mob kab mob ntshav qab zib?
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Tus kab mob Sickle cell yog tshwm sim los ntawm kev hloov pauv ntawm beta-globin noob hu ua sickle hemoglobin (Hb S). Inherited autosomal recessively, ob daim ntawv theej ntawm Hb S los yog ib daim ntawv ntawm Hb S ntxiv rau lwm beta-globin variant (xws li Hb C) yog xav tau rau kev qhia kab mob.

Ib yam li ntawd, tib neeg nug, dab tsi allele ua rau mob mob cell anemia?

Sickle cell disease yog tshwm sim los ntawm a kev hloov pauv nyob rau hauv hemoglobin-Beta gene pom nyob rau ntawm chromosome 11. Hemoglobin thauj oxygen los ntawm lub ntsws mus rau lwm qhov ntawm lub cev. Cov qe ntshav liab uas muaj hemoglobin ib txwm (hemoglobin-A) yog du thiab puag ncig thiab glide los ntawm cov hlab ntsha.

Ib tug kuj yuav nug, nyob qhov twg yog tus kab mob cell allele? Cov qev cell qhov tsis zoo ntawm tus mob ntshav qab zib yog pom ntawm qhov rov ua haujlwm allele ntawm hemoglobin noob. Qhov no txhais tau hais tias koj yuav tsum muaj ob daim ntawv theej ntawm qhov recessive allele - ib tug ntawm koj niam thiab ib tug los ntawm koj txiv - kom muaj tus mob.

Ntawm no, dab tsi yog kab mob cell allele?

Mob caj dab tus cwj pwm piav qhia qhov xwm txheej uas tus neeg muaj ib qho txawv txav allele ntawm hemoglobin beta noob (yog heterozygous), tab sis tsis pom cov tsos mob hnyav ntawm qev cell kab mob uas tshwm sim hauv tus neeg uas muaj ob daim ntawv luam ntawm qhov ntawd allele (yog homozygous).

Dab tsi yog qhov xav tau rau cov kab mob cell anemia?

Ob lub noob rau cov kab mob hemoglobin yuav tsum tau txais los ntawm ib tus niam txiv thiaj li yuav muaj cov kab mob . A tus neeg leej twg tau txais gene rau sickle cell kab mob los ntawm ib tug niam txiv thiab ib txwm gene los ntawm lwm tus muaj tus mob hu ua " qev cell tus yam ntxwv. " Mob caj dab tus cwj pwm ua rau tsis muaj tsos mob lossis teeb meem rau feem ntau neeg.

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