Video: Dab tsi yog alleles rau hom ntshav?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tib neeg hom ntshav yog txiav txim los ntawm codominant alleles . Muaj peb yam sib txawv alleles , npe iA, kuvB, thiab i. Qhov kuvA thiab kuvB alleles yog co-dominant, thiab cov i allele yog recessive. Qhov ua tau tib neeg phenotypes rau ntshav pab pawg yog hom A, hom B, hom AB, and hom O.
Yog li ntawd, peb alleles rau hom ntshav yog dab tsi?
Hom ntshav yog tswj los ntawm ntau alleles . Muaj tiag peb txawv alleles ; A, B, thiab O uas txiav txim siab tus neeg hom ntshav . (Txawm tias muaj peb allel ua tau, nco ntsoov tias txhua tus neeg tsuas muaj ob lub noob rau txhua tus cwj pwm.) Ntawm peb allel , A thiab B qhia codominance.
Qhov thib ob, hom ntshav twg yog heterozygous? Cov noob caj noob ces yog cov uas muaj ob qho alleles, xws li A (IA) thiab B (IB), yog ob qho tib si tseem ceeb, thiab ib qho heterozygous genotype (AB) tsim cov phenotype qhov twg ob qho tib si tau qhia (tus A thiab B glycoproteins).
Ntxiv mus, vim li cas tsab ntawv kuv siv rau hom ntshav alleles?
Lub npe kuv sawv cev rau isoagglutinogen, lwm lub sij hawm rau antigen. Cov noob encodes glycosyltransferase-uas yog, ib qho enzyme uas hloov cov ntsiab lus carbohydrate ntawm liab. ntshav cell antigens.
Hom ntshav twg yog iAi?
Cov genotypes hauv qab no yuav tsim cov hom ntshav no: • iAiA lossis iAi - Ob hom genotypes tsim cov protein A (hom A). iBiB lossis iBi - Ob lub genotypes tsim cov B cov protein ( hom B ). iAiB - Qhov genotype no tsim cov A thiab B protein ( type AB ).
Pom zoo:
Puas yog koj cov ntshav hom caj ces?
Txhua tus neeg muaj hom ntshav ABO (A, B, AB, lossis O) thiab Rh yam (zoo lossis tsis zoo). Ib yam li qhov muag lossis cov plaub hau xim, peb hom ntshav tau txais los ntawm peb niam peb txiv. Txhua leej niam leej txiv pub ib qho ntawm ob hom ABO rau lawv tus menyuam. Cov noob A thiab B yog qhov tseem ceeb thiab cov noob O yog qhov tsis zoo
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Ib tug yam ntxwv ntawm txhua hom nrog tsuas yog ib tug tsawg tus naj npawb ntawm qhov tseem ceeb qhia tau hais tias tsis tu ncua variation. Tib neeg cov ntshav yog ib qho piv txwv ntawm kev hloov pauv tsis tu ncua. Tsis muaj qhov tseem ceeb nyob nruab nrab, yog li qhov no yog qhov hloov pauv tsis tu ncua
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