Video: Nyob rau theem twg cell division pib?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Mitosis yog hom qub cell faib . Ua ntej lub hlwb ua tau faib , cov chromosomes yuav muaj duplicated thiab cov cell yuav muaj ob npaug ntawm cov txheej txheem ib txwm muaj. Thawj kauj ruam ntawm cell faib yog prophase, thaum lub sij hawm lub nucleus yaj thiab cov chromosomes pib migration mus rau lub midline ntawm lub cell.
Tom qab ntawd, ib tus tuaj yeem nug, qhov twg theem ntawm lub voj voog ntawm tes cuam tshuam nrog kev faib tawm ntawm lub cell lub nucleus?
Mitosis
Ib sab saum toj no, thaum lub sij hawm twg ntawm cov cell faib ua lub nuclear membrane yaj? prophase
Kuj nug, nyob rau theem twg yog lub cell ua ntej mitosis pib?
Cov cell lub voj voog muaj peb theem uas yuav tsum tshwm sim ua ntej mitosis , los yog cell kev faib, tshwm sim. Cov peb theem no yog sib sau ua ke hu ua interphase. Lawv yog G1, S, thiab G2. G sawv rau qhov sib txawv thiab S sawv rau kev sib txuas.
Nyob rau theem twg cell division tshwm sim?
Mitosis (tus M theem ) Cov txheej txheem ntawm mob mitosis , los yog cell faib , tseem hu ua M theem . Qhov no yog qhov twg cell faib nws yav dhau los-tshaj DNA thiab cytoplasm los ua ob tus ntxhais tshiab, zoo ib yam hlwb . Mitosis muaj plaub yam yooj yim theem : prophase, metaphase, anaphase, thiab telophase.
Pom zoo:
Yuav ua li cas cov txheej txheem ntawm cell faib nyob rau hauv eukaryotes feem ntau zoo ib yam li cell faib nyob rau hauv prokaryotes?
Tsis zoo li eukaryotes, prokaryotes (uas suav nrog cov kab mob) tau txais ib hom kev faib cell hu ua binary fission. Hauv qee qhov, cov txheej txheem no zoo ib yam li mitosis; Nws yuav tsum tau rov ua dua ntawm cov cell chromosomes, cais ntawm cov theej DNA, thiab kev sib cais ntawm niam txiv cell cytoplasm
Nyob rau theem twg DNA nyuaj tshaj plaws kom pom nyob rau hauv lub tshuab tsom iav?
DNA yog qhov nyuaj tshaj plaws kom pom ntawm prophase theem ntawm mitosis. Kev piav qhia: Nyob rau theem prophase, tsis muaj cov chromosomes txhais tau zoo. DNA yog tam sim no nyob rau hauv daim ntawv ntawm nyias chromatin fibers uas nyuaj rau pom nyob rau hauv lub microscope
Nyob rau theem twg DNA nyuaj tshaj plaws pom nyob rau hauv lub tshuab tsom iav?
DNA yog qhov nyuaj tshaj plaws kom pom ntawm prophase theem ntawm mitosis. Kev piav qhia: Nyob rau theem prophase, tsis muaj cov chromosomes txhais tau zoo. DNA yog tam sim no nyob rau hauv daim ntawv ntawm nyias chromatin fibers uas nyuaj rau pom nyob rau hauv lub microscope
Nyob rau theem twg yog lub cell ua ntej mitosis pib?
Lub voj voog ntawm tes muaj peb theem uas yuav tsum tshwm sim ua ntej mitosis, lossis cell division, tshwm sim. Peb theem no suav nrog hu ua interphase. Lawv yog G1, S, thiab G2. G sawv rau qhov sib txawv thiab S sawv rau kev sib txuas
Nyob rau theem twg S yog cov molecules tuav nyob rau hauv ib daim ntawv teev?
khov kho Ntawm no, nyob rau theem S twg yog cov molecules tuav nyob rau hauv cov duab meej? Khoom Ib yam li ntawd, qhov kub thiab txias cuam tshuam li cas rau theem hloov? Cov cua sov yog siv los rhuav tshem cov kev sib txuas ntawm cov dej khov molecules thaum lawv tig mus ua kua theem .