Puas yog qhov tshwm sim uas tus ntxhais ntawm no mating yuav yog hemophiac?

Cov txheej txheem:

Puas yog qhov tshwm sim uas tus ntxhais ntawm no mating yuav yog hemophiac?
Puas yog qhov tshwm sim uas tus ntxhais ntawm no mating yuav yog hemophiac?

Video: Puas yog qhov tshwm sim uas tus ntxhais ntawm no mating yuav yog hemophiac?

Video: Puas yog qhov tshwm sim uas tus ntxhais ntawm no mating yuav yog hemophiac?
Video: TSIS POM QAB UA KOJ TUS TXIV TSEV( tub tswb vwj )nkauj tawm tshiab 2023 MV 2024, Hlis ntuj nqeg
Anonim

A) Qhov tshwm sim yog dab tsi uas tus ntxhais ntawm no mating nrog hemophiac? Qhov tshwm sim uas tus ntxhais ntawm no mating nrog hemophiac yog zero.

Qhov tshwm sim ntawm tus tub hemophiliac yog leej niam yog tus cab thiab leej txiv zoo li cas?

Yog ob leej niam yog tus neeg nqa khoom thiab leej txiv muaj hemophilia: Hauv qhov xwm txheej tsawg kawg uas leej niam thiab leej txiv tau cuam tshuam X chromosomes ces muaj a 50 feem pua hais tias lawv cov tub yuav yug los nrog hemophilia.

Puas yog hemophilia kis ntawm leej txiv mus rau tus ntxhais?

Ib leej txiv uas muaj hemophilia muaj cov noob thiab kis mus rau nws tus ntxhais vim cov ntxhais tau txais ob X chromosomes, ib tug ntawm lawv niam thiab ib tug los ntawm lawv txiv. Qhov no yog vim li cas cov ntxhais ntawm cov txiv neej uas muaj hemophilia hu ua obligate carriers.

Puas yog haemophilia dominant lossis recessive?

Hemophilia is a sex-linked recessive disorder. Qhov txawv txav ntawm lub luag haujlwm rau hemophilia yog nqa ntawm X chromosome. Txiv neej muaj ib tug X chromosome thiab ib tug Y chromosome.

YPuas yog hemophilia homozygous lossis heterozygous?

Tus kab mob no tau txais txiaj ntsig los ntawm X-txuas rov qab qhov zoo thiab yog li tshwm sim hauv cov txiv neej thiab tsis tshua muaj nyob hauv cov poj niam homozygous. Heterozygous poj niam rau tus kab mob no hu ua tus nqa.

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