Yuav ua li cas chromosomal txawv txav tshwm sim?
Yuav ua li cas chromosomal txawv txav tshwm sim?

Video: Yuav ua li cas chromosomal txawv txav tshwm sim?

Video: Yuav ua li cas chromosomal txawv txav tshwm sim?
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Tus neeg muaj peb daim ntawv luam ntawm chromosome 21. Trisomy-18 (Edward's Syndrome) tshwm sim peb zaug hauv txhua 10,000 yug. Tus neeg muaj peb daim ntawv luam ntawm chromosome 18. Trisomy-13 (Patau's Syndrome) tshwm sim ob zaug hauv txhua 10,000 yug.

Tsis tas li ntawd, qhov muaj feem cuam tshuam ntawm chromosomal abnormalities yog dab tsi?

Thaum koj laus lawm, muaj ntau dua caij nyoog ntawm muaj me nyuam nrog tej yam chromosomal Cov xwm txheej, zoo li Down syndrome. Piv txwv li, thaum muaj hnub nyoog 35, koj muaj feem muaj me nyuam nrog a chromosomal mob yog 1 ntawm 192. Thaum muaj hnub nyoog 40, koj muaj feem yog 1o66.

Tsis tas li, koj tuaj yeem tiv thaiv chromosomal abnormalities li cas? Txo koj qhov kev pheej hmoo ntawm Chromosomal Abnormalities

  1. Mus ntsib kws kho mob peb lub hlis ua ntej koj sim xeeb tub.
  2. Noj ib qho vitamin prenatal ib hnub rau peb lub hlis ua ntej koj cev xeeb tub.
  3. Khaws txhua qhov kev mus ntsib koj tus kws kho mob.
  4. Noj cov zaub mov zoo.
  5. Pib ntawm lub cev hnyav.
  6. Tsis txhob haus luam yeeb lossis haus cawv.

Ib sab saum toj no, ua li cas chromosomal abnormalities tshwm sim?

Chromosome abnormalities feem ntau tshwm sim thaum muaj kev ua yuam kev hauv cell division. Muaj ob hom kev faib cell, mitosis thiab meiosis. Mitosis tshwm sim nyob rau hauv ob lub hlwb uas yog duplicates ntawm thawj cell. Ib lub cell nrog 46 chromosomes faib thiab ua ob lub hlwb nrog 46 chromosomes txhua.

Dab tsi ua rau chromosomal abnormalities nyob rau hauv thaum ntxov cev xeeb tub?

Chromosome abnormalities feem ntau tshwm sim vim ib los yog ntau tshaj ntawm cov no: yuam kev thaum Kev faib cov hlwb ntawm kev sib deev (meiosis) yuam kev thaum Kev faib tawm ntawm lwm cov hlwb (mitosis) raug rau cov khoom uas ua rau yug qhov tsis xws luag (Teratogens)

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