Video: Aneuploidy tshwm sim los ntawm dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib qho ntxiv lossis tsis muaj chromosome yog qhov tshwm sim ua rau ntawm qee yam kab mob caj ces. Qee cov qog nqaij hlav cancer kuj muaj cov lej txawv txav ntawm chromosomes. Anuploidy originates thaum lub cell faib thaum lub chromosomes tsis sib cais kom zoo ntawm ob lub hlwb (nondisjunction).
Hais txog qhov no, dab tsi yog qhov ua rau aneuploidy?
Anuploidy tuaj yeem yog ua rau los ntawm kev ua tsis tiav ntawm homologous chromosomes cais kom raug ntawm meiosis lossis mitosis, ib qho tshwm sim hu ua nondisjunction.
Tsis tas li ntawd, aneuploidy yog dab tsi thiab nws hom? Anuploidy : Ntxiv lossis tsis muaj chromosomes. Kev hloov pauv hauv cov khoom siv caj ces yog hu ua mutations. Hauv ib hom kev hloov pauv, cov hlwb yuav xaus nrog ib qho ntxiv lossis tsis muaj chromosome. Txhua hom muaj tus yam ntxwv chromosome tooj, xws li 46 chromosomes rau tib neeg lub cev cell.
Ib yam li ntawd, nws raug nug, cov tsos mob ntawm aneuploidy yog dab tsi?
Cov yam ntxwv muaj xws li microcephaly hnyav, kev loj hlob tsis txaus thiab luv luv, lub cev tsis zoo, qhov muag txawv txav , teeb meem nrog lub paj hlwb thiab hauv nruab nrab paj hlwb, qaug dab peg , kev loj hlob qeeb, thiab kev tsis taus kev txawj ntse.
Yuav kho aneuploidy li cas?
Xwb, xaiv tua ntawm aneuploid cov hlwb txheeb ze rau cov hlwb diploid yog lub peev xwm kho mob rau mob qog noj ntshav kev kho mob . Cov aneuploidy kev nyuaj siab-induced phenotypes txawv aneuploid cov hlwb los ntawm cov hlwb diploid, thiab qhov no tuaj yeem raug siv los xaiv tshem tawm aneuploid qog hlwb.
Pom zoo:
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