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Video: Lub npe scientific rau Down syndrome yog dab tsi?
2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32
Down syndrome (DS los yog DNS), tseem hu ua trisomy 21, yog ib hom kab mob caj ces tshwm sim los ntawm kev muaj tag nrho lossis ib feem ntawm daim ntawv thib peb ntawm chromosome 21. Nws feem ntau cuam tshuam nrog kev loj hlob ntawm lub cev qeeb, me me mus rau nruab nrab kev txawj ntse, thiab cov yam ntxwv ntawm lub ntsej muag. nta.
Tom qab ntawd, 3 hom Down syndrome yog dab tsi?
Muaj peb hom Down syndrome: trisomy 21 (nondisjunction), translocation thiab mosaicism
- Trisomy 21, feem ntau hom Down syndrome, tshwm sim thaum muaj peb, ntau dua li ob, tus lej 21 chromosomes muaj nyob hauv txhua lub cell ntawm lub cev.
- Kev hloov mus rau 4% ntawm tag nrho cov mob Down syndrome.
Ib yam li ntawd, puas muaj qib ntawm Down syndrome? Nyob ntawd Muaj peb hom sib txawv ntawm Down Syndrome Trisomy 21 Down syndrome : Feem ntau hom ntawm Down syndrome - suav txog kwv yees li 95 feem pua ntawm tag nrho cov mob - yog trisomy 21 Down syndrome . Tsuas yog 3 mus rau 4 feem pua Down syndrome cov neeg mob muaj hom no. Mosaic Down syndrome : Ib zaug ntxiv, kev tshawb fawb caj ces yog qhov nyuaj.
Kuj tseem paub yog, dab tsi ua rau Down syndrome?
Trisomy 21. Txog 95 feem pua ntawm lub sijhawm, Down syndrome yog tshwm sim los ntawm trisomy 21 - tus neeg muaj peb daim ntawv theej ntawm chromosome 21, es tsis txhob ntawm ob daim ntawv ib txwm, nyob rau hauv tag nrho cov hlwb. Qhov no yog tshwm sim los ntawm qhov txawv txav ntawm tes thaum lub sij hawm kev loj hlob ntawm cov phev cell los yog qe cell.
Puas yog Down syndrome autosomal lossis Sexlinked?
Ntawm 46 chromosomes, 44 yog autosomal ua . Qhov seem 2 chromosomes yog poj niam txiv neej chromosomes. Chromosomal Disorders: Down Syndrome / Trisomy 21: Muaj ib qho chromosome ntxiv rau 21st khub ua rau Downs syndrome.
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