Dab tsi yog qhov txawv ntawm gene thiab locus?
Dab tsi yog qhov txawv ntawm gene thiab locus?

Video: Dab tsi yog qhov txawv ntawm gene thiab locus?

Video: Dab tsi yog qhov txawv ntawm gene thiab locus?
Video: Txiv tshiab muab ntxhais txi nyiaj p2 11/18/2018 2024, Kaum ib hlis
Anonim

Alleles yog variants ntawm tib yam noob uas tshwm sim ntawm tib qhov chaw ntawm chromosome. (Los ntawm kev hloov pauv, lawv yog txawv .) A chaw hais txog qhov chaw nyob ntawm chromosome qhov twg noob pom. Loci yog tus plural daim ntawv ntawm chaw.

Hais txog qhov no, dab tsi yog gene allele thiab locus?

Ib allele yog ib daim ntawv variant ntawm a noob . Ib txhia noob muaj ntau hom kev sib txawv, uas nyob ntawm tib txoj haujlwm, lossis caj ces , ntawm chromosome. Tib neeg hu ua diploid kab mob vim lawv muaj ob alleles ntawm ib leeg caj ces ,cu ib allele tau txais los ntawm txhua tus niam txiv.

Ib tug kuj yuav nug, dab tsi yog DNA locus? A chaw yog qhov chaw tshwj xeeb ntawm lub cev ntawm cov noob lossis lwm yam DNA ua ntu zus ntawm chromosome, zoo li qhov chaw nyob ntawm caj ces. Lub plural ntawm chaw yog " loci ib ".

Locus allele thiab cov noob zoo li cas?

Ib allele yog variant ntawm a noob . Txhua lub cell muaj ob alleles (ib leeg niam txiv) rau txhua tus noob : ib dominant, ib recessive. Locus yog rau qee qhov sib pauv nrog noob , txawm li cas los chaw yog tsawg dua thiab tsis txhais hais tias qhov chaw code rau tag nrho noob.

Dab tsi yog qhov txawv ntawm ib qho allele thiab chromosome?

Allele vs. Ib allele muaj nyob rau ntawm qhov chaw ruaj ntawm ib chromosome . Chromosomes tshwm sim hauv khub ces kab mob muaj ob alleles rau txhua gene - ib tug allele hauv ib qho chromosome nyob rau hauv khub. Txij li txhua tus chromosome nyob rau hauv khub los ntawm ib txawv niam txiv, kab mob tau txais ib qho allele los ntawm txhua tus niam txiv rau txhua tus gene.

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