Video: Dab tsi yog cov kauj ruam ntawm cytokinesis?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cytokinesis tshwm sim hauv plaub theem: pib, contraction, membrane insertion thiab tiav. Cov xwm txheej tshwm sim nyob rau hauv cov theem no txawv ntawm cov tsiaj thiab cov nroj tsuag. Daim duab 1: Cytokinesis tshwm sim thaum lig telophase ntawm mob mitosis nyob rau hauv ib tug tsiaj cell.
Xav txog qhov no, ua li cas thaum lub sij hawm cytokinesis?
Thaum lub sij hawm cytokinesis , lub cytoplasm splits nyob rau hauv ob thiab lub cell faib. Nyob rau hauv cov tsiaj hlwb, cov plasma daim nyias nyias ntawm niam txiv cell pinches nyob rau hauv raws li lub cell txoj kab nruab nrab mus txog rau thaum ob tug ntxhais cell tsim.
Ib yam li ntawd, cytokinesis puas tshwm sim hauv interphase? Cell Cycle Interphase sawv cev rau ib feem ntawm lub voj voog uas lub cell tab tom npaj faib tab sis tseem tsis tau faib. M theem suav nrog mitosis, uas yog kev tsim tawm ntawm cov nucleus thiab nws cov ntsiab lus, thiab cytokinesis , uas yog cleavage rau hauv cov ntxhais cell ntawm tag nrho cov.
Tsis tas li ntawd, cytokinesis siv sijhawm li cas?
Feem ntau, cov cell yuav coj nruab nrab 5 thiab 6 teev rau ua kom tiav S theem. G2 luv dua, kav tsuas yog 3 rau 4 teev nyob rau hauv ntau lub hlwb. Nyob rau hauv tas li ntawd, interphase feem ntau yuav siv sij hawm ntawm 18 thiab 20 teev . Mitosis, thaum lub sij hawm lub cell ua kev npaj rau thiab ua kom tiav cell faib tsuas yog siv li ntawm 2 teev.
Yuav ua li cas thaum cytokinesis hauv meiosis?
Lub homologous chromosome khub ncav cuag tus ncej ntawm lub cell, lub hnab ntawv nuclear tsim nyob ib ncig ntawm lawv, thiab cytokinesis raws li tsim ob lub hlwb. Nyob rau hauv cov tsiaj cell, cytokinesis Kev tsim cov cleavage furrow, uas ua rau lub pinching ntawm lub cell mus rau hauv ob lub hlwb.
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