Dab tsi yog genotype ntawm ib tug neeg nrog polydactyly?
Dab tsi yog genotype ntawm ib tug neeg nrog polydactyly?

Video: Dab tsi yog genotype ntawm ib tug neeg nrog polydactyly?

Video: Dab tsi yog genotype ntawm ib tug neeg nrog polydactyly?
Video: Muaj tsis ntshai tuag 7/1/2018 2024, Kaum ib hlis
Anonim

Polydactyly yog ib qho kev mob tshwm sim nyob rau hauv uas a tus neeg muaj ntiv tes lossis ntiv taw ntxiv. Nws yog tshwm sim los ntawm ib tug tseem ceeb allele ntawm ib tug noob. Ib tug leej twg yog homozygous (PP) lossis heterozygous (Pp) rau cov tseem ceeb allele yuav tsim Polydactyly.

Hais txog qhov no, dab tsi noob cuam tshuam los ntawm polydactyly?

GLI 3 Cov noob hloov pauv tuaj yeem ua rau ntau hom kev cais polydactyly.

Tom qab ntawd, lo lus nug yog, vim li cas polydactyly yog qhov tseem ceeb tshaj plaws? Muaj ntau tshaj tsib ntiv tes yog qhov nyuaj me ntsis vim nws tuaj yeem ua tau tseem ceeb los yog recessive qhov zoo , nyob ntawm seb cov noob muaj feem cuam tshuam li cas. Yog polydactyly yog tshwm sim los ntawm ib leeg xwb noob uas tsuas yog cuam tshuam tus naj npawb ntawm cov ntiv tes lossis ntiv taw thiab tsis muaj dab tsi ntxiv, ces nws feem ntau yog a qhov tseem ceeb.

Raws li txoj cai, yog cov noob rau 6 ntiv tes tseem ceeb?

Polydactyly tuaj yeem tshwm sim los ntawm nws tus kheej, lossis ntau dua, raws li ib qho ntawm cov tsos mob ntawm congenital anomalies. Thaum nws tshwm sim los ntawm nws tus kheej, nws yog txuam nrog autosomal tseem ceeb mutations nyob rau hauv ib leeg noob , i.e. nws tsis yog multifactorial qhov zoo . Tab sis mutation nyob rau hauv ntau yam noob tuaj yeem ua rau polydactyly.

Polydactyly cuam tshuam li cas rau ib tug neeg?

Polydactyly vim a tus neeg kom muaj cov ntiv tes los yog ntiv taw ntxiv ntawm ib lossis ob leeg ntawm lawv txhais tes lossis ko taw. Tus lej ntxiv lossis tus lej yuav yog: ua tiav thiab ua haujlwm tiav. ib feem tsim, nrog ib co pob txha.

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