Video: Dab tsi theem ntawm mitosis puas lub nuclear membrane hloov kho?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Telophase . Qhov kawg theem ntawm mitosis, thiab kev thim rov qab ntawm ntau cov txheej txheem tau pom thaum lub sijhawm prophase . Lub nuclear membrane hloov kho nyob ib ncig ntawm lub chromosomes grouped ntawm ob tug ncej ntawm lub cell, lub chromosomes uncoil thiab ua diffuse, thiab spindle fibers ploj.
Yog li ntawd, thaum lub sij hawm lub sij hawm twg ntawm mitosis puas lub nuclear membrane yaj tag?
prophase
Ib sab saum toj no, yuav ua li cas thiaj li nuclear membrane ploj thaum mitosis? Cov lub hnab ntawv nuclear ua tsis yog ploj lawm hauv metaphase ntawm mob mitosis , vim nws twb ua nyob rau hauv prophase. Cov lub hnab ntawv nuclear yuav tsum tau muab sib cais kom cov chromosomes tuaj yeem pom, nyob rau hauv nruab nrab ntawm lub cell, thiab ces rub tawm.
Ib yam li ntawd, nyob rau theem twg ntawm mitosis puas lub hnab ntawv nuclear hloov kho lub hlwb?
Thaum telophase , kev hloov kho lub hnab ntawv nuclear.
Puas yog DNA condensed hauv S theem?
S Phase ( Synthesis ntawm DNA) Thoob plaws hauv interphase, nuclear DNA tseem nyob rau hauv ib tug semi-condensed chromatin configuration. Nyob rau hauv S theem, DNA replication tshwm sim nyob rau hauv tsim ntawm zoo tib yam khub ntawm DNA molecules, tus muam chromatids, uas yog ruaj khov txuas mus rau lub centromeric cheeb tsam.
Pom zoo:
Puas yog theem hloov pauv ib txwm hloov lub cev?
Teeb meem ib txwm hloov daim ntawv, qhov loj me, cov duab, xim, thiab lwm yam. Muaj 2 hom kev hloov pauv uas tseem ceeb dhau mus. Phase Changes yog PHYSICAL PHYSICAL!!!!! TAG NRHO cov theem kev hloov pauv yog tshwm sim los ntawm kev ntxiv lossis tshem tawm lub zog
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog qhov kev sib txuas ua haujlwm ntawm nucleolus nuclear pores thiab nuclear membrane?
Dab tsi yog qhov kev sib txuas ua haujlwm ntawm nucleolus, nuclear pores, thiab daim nyias nyias? A. Lub nucleolus muaj tus xa xov RNA (mRNA), uas hla lub hnab ntawv nuclear los ntawm lub qhov pores nuclear
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
Qhov twg theem ntawm meiosis kuv zoo ib yam li theem piv rau hauv mitosis?
Keyboard Shortcuts rau kev siv Flashcards: qhov twg hauv qab no tsis yog qhov txawv ntawm meiosis? Kev txuas ntawm tus muam kinetochore rau spindle microtubles uas theem ntawm meiosis kuv zoo ib yam li theem piv hauv mitosis? telophase kuv