Video: Dab tsi yog txhais los ntawm ntau alleles?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhais thiab piv txwv
Ntau alleles yog ib hom uas tsis yog-Mendelian qub txeeg qub teg uas muaj ntau tshaj li ob qho tib si alleles uas feem ntau code rau tej yam ntxwv ntawm ib hom. Lwm yam alleles tej zaum yuav co-dominant ua ke thiab qhia lawv tus yam ntxwv sib npaug zos nyob rau hauv lub phenotype ntawm tus neeg
Tsis tas li ntawd, qhov piv txwv ntawm ntau yam allele yog dab tsi?
Piv txwv ntawm Ntau Alleles Ob tug neeg piv txwv ntawm ntau - allele Cov noob yog cov noob ntawm ABO cov ntshav pab pawg, thiab tib neeg-leukocyte-associated antigen (HLA) genes. ABO system nyob rau hauv tib neeg yog tswj los ntawm peb alleles , feem ntau hu ua IA, kuvB, thiab kuvO (tus "Kuv" sawv cev rau isohaemagglutinin).
Tsis tas li ntawd, ntau yam alleles tsim tau li cas? Ntau cov alleles muaj nyob rau hauv ib tug pej xeem thaum muaj ntau variations ntawm ib tug gene tam sim no. Haploid kab mob thiab hlwb tsuas muaj ib daim qauv ntawm cov noob, tab sis cov pejxeem tseem tuaj yeem muaj ntau alleles . Hauv ob qho tib si haploid thiab diploid kab mob, tshiab alleles yog tsim los ntawm spontaneous mutations.
Ua kom pom qhov no, txhais li cas ntawm ntau yam allele zoo?
A ntau yam allele zoo yog thaum muaj ntau tshaj ob alleles uas muaj nyob rau hauv cov pejxeem. Alleles tuaj yeem yog qhov tseem ceeb lossis rov ua dua, tuaj yeem npog txhua qhov
Vim li cas ntshav hom yog piv txwv ntawm ntau yam alleles?
Ntau cov alleles txhais tau tias muaj ntau tshaj ob ntau tshaj ob phenotypes muaj nyob ntawm qhov tseem ceeb thiab recessive alleles hauv qhov zoo. Yog li, tus qauv dominance nyob ntawm seb qhov twg ntawm lawv yuav nthuav tawm ntau dua li lwm tus. Hauv ABO pawg ntshav Qhov system, A thiab B ob qho tib si tseem ceeb rau O.
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