Puas yog Trisomy 13 dominant lossis recessive?
Puas yog Trisomy 13 dominant lossis recessive?

Video: Puas yog Trisomy 13 dominant lossis recessive?

Video: Puas yog Trisomy 13 dominant lossis recessive?
Video: Trisomy 13 and 18 - The Basics - 2021 version 2024, Kaum ib hlis
Anonim

Txawm hais tias cov tsos mob thiab kev tshawb pom zoo ib yam li cov uas muaj feem cuam tshuam nrog Trisomy 13 Syndrome, cov me nyuam mos uas muaj tus kab mob no tsis muaj chromosome ntxiv 13 thiab lawv cov kev tshawb fawb chromosomal zoo li qub. Cov ntaub ntawv pov thawj qhia tias qhov teeb meem no tuaj yeem tau txais los ua autosomal rov ua dua qhov zoo.

Kuj paub, trisomy 13 tau txais txiaj ntsig li cas?

Feem ntau ntawm trisomy 13 tsis yog tau qub txeeg qub teg thiab tshwm sim los ntawm random txheej xwm thaum lub sij hawm tsim ntawm qe thiab phev nyob rau hauv cov niam txiv noj qab haus huv. Ib qho yuam kev hauv kev faib cell hu ua nondisjunction ua rau lub cev xeeb tub nrog tus lej ntawm chromosomes txawv txav. Hloov chaw trisomy 13 tuaj yeem yog tau qub txeeg qub teg.

Ib tug kuj yuav nug, hom kev hloov pauv twg yog trisomy 13? Trisomy 13 yog a hom chromosome teeb meem tshwm sim los ntawm muaj 3 daim ntawv theej ntawm chromosome 13 nyob rau hauv cov hlwb ntawm lub cev, es tsis txhob ntawm ib txwm 2 daim ntawv. Hauv qee tus neeg cuam tshuam, tsuas yog ib feem ntawm cov hlwb muaj cov chromosome ntxiv 13 (hu ua mosaic trisomy 13 ), hos lwm lub hlwb muaj cov chromosome li qub.

Tom qab ntawd, ib tus tuaj yeem nug, yog Trisomy 13 caj ces lossis chromosomal?

Trisomy 13 yog a caj ces teeb meem uas koj tus menyuam tau txais thaum nws muaj ib qho ntxiv 13th chromosome . Hauv lwm lo lus, nws muaj peb daim ntawv luam ntawm nws chromosome 13 thaum nws yuav tsum muaj ob. Nws tshwm sim thaum cov hlwb sib faib txawv txav thaum lub sijhawm yug me nyuam, thiab tsim ntxiv caj ces khoom rau chromosome 13.

Qhov txawv ntawm trisomy 13 thiab 18 yog dab tsi?

Cov neeg feem coob muaj 23 khub ntawm chromosomes hauv lawv lub hlwb. Trisomy txhais tau hais tias ib tug neeg muaj 3 ntawm ib qho chromosome es tsis yog 2. Trisomy 13 txhais tau hais tias tus me nyuam muaj 3 daim ntawv ntawm tus lej chromosome 13 . Trisomy 18 txhais tau hais tias tus me nyuam muaj 3 daim ntawv ntawm tus lej chromosome 18.

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