Qhov txawv ntawm Telophase thiab Cytokinesis

Qhov txawv ntawm Telophase thiab Cytokinesis
Qhov txawv ntawm Telophase thiab Cytokinesis

Video: Qhov txawv ntawm Telophase thiab Cytokinesis

Video: Qhov txawv ntawm Telophase thiab Cytokinesis
Video: Vim li cas koj lub neej thiaj li tsis txawj muaj nyiaj yog ua cas? ( How to Change your life) 2024, Lub Xya hli ntuj
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Telophase vs Cytokinesis

Txhua lub hlwb tshwm sim los ntawm ib lub cell uas twb muaj lawm los ntawm cov txheej txheem hu ua cell division. Kev faib tawm ntawm tes yuav tshwm sim raws li cov xwm txheej uas hu ua cell division cycle lossis cell cycle. Lub sijhawm ntawm lub voj voog ntawm tes yuav txawv ntawm 2 mus rau 3 teev nyob rau hauv ib leeg-celled kab mob mus txog 24 teev nyob rau hauv tib neeg lub cell. Thaum lub sij hawm no, cell hloov ntau yam. Raws li cov xwm txheej, lub voj voog ntawm tes tuaj yeem muab faib ua ob peb theem; G1, S, G2 thiab Cell faib. Kev faib tawm ntawm tes tuaj yeem muab faib ua ob theem ntxiv; nuclear division thiab cytokinesis. Nuclear faib ntawm ib lub cell muaj tsib theem xws li; interphase, prophase, metaphase, anaphase, thiab telophase. Raws li lub voj voog ntawm tes, telophase yog ua raws li cytokinesis. Tab sis qee zaus cytokinesis kuj tuaj yeem tshwm sim ua ntej telophase.

Telophase

Telophase yog theem kawg ntawm kev faib tawm nuclear, thiab nws pib thaum ob pawg chromosomes tau mus txog ntawm cov ncej ntawm tes. Nws yog qhov thim rov qab ntawm prophase. Thaum pib ntawm telophase, nuclear membrane thiab nucleoli hloov kho, thiab cov chromosomes ua tsis tshua pom. Thaum kawg ntawm nws, spindle apparatus (uas tau tsim thaum lub sij hawm prophase thiab metaphase) ploj. Mitosis tiav thaum ob lub nuclei zoo tib yam tsim ntawm ob tug ncej ntawm nuclei. Thaum lub sij hawm meiosis, telophase tshwm sim ob zaug. Lawv raug hu ua telophase I thiab telophase II, uas tshwm sim thaum lub sij hawm meiosis kuv thiab meiosis II feem.

Cytokinesis

Cytokinesis yog kev faib ntawm cytoplasm uas ua rau ob lub hlwb tshiab. Feem ntau nws tshwm sim tom qab telophase. Tab sis qee zaum, nws yuav tshwm sim ua ntej telophase lossis tsis tshwm sim txhua. Qhov tsis muaj cytokinesis tshwm sim hauv cov cell multinucleated. Nyob rau hauv cov tsiaj hlwb, ib tug cleavage furrow yog tsim los pinch ob lub hlwb sib nrug, li no hu ua 'furrowing'. Hauv cov nroj tsuag, cytokinesis tshwm sim los ntawm kev tsim cov phaj cell raws kab nruab nrab ntawm tes. Hauv cov txheej txheem no, vesicles koom ua ib lub phaj ntawm tes, thiab nws loj hlob sab nraud. Thaum kawg, lub phaj ntawm tes fuses nrog cell nto membrane thiab tsim ob lub cell phab ntsa.

Qhov txawv ntawm Telophase thiab Cytokinesis yog dab tsi?

• Telophase yog theem kawg ntawm kev faib nuclear, qhov cytokinesis yog theem kawg ntawm kev faib cell.

• Kev tsim ntawm lub hnab ntawv nuclear thiab nucleoli tshwm sim hauv telophase. Hauv kev sib piv ntawm cytoplasm tshwm sim thaum lub sij hawm cytokinesis.

• Telophase ua rau ob tug ntxhais nuclei, thaum cytokinesis ua rau ob lub hlwb sib cais.

• Feem ntau, cytokinesis tshwm sim tom qab telophase.

• Tsis zoo li nyob rau hauv lub telophase, cell phaj yog tsim (nyob rau hauv cov nroj tsuag hlwb) nyob rau hauv cytokinesis.

• Anaphase ua raws li telophase, whereas telophase yog ua raws li cytokinesis.

• Qee zaus, cytokinesis yuav tsis tshwm sim thaum lub sijhawm faib ntawm tes. Tsis zoo li cytokinesis, telophase ib txwm tshwm sim thaum kawg ntawm kev faib cell.

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