Video: Yuav ua li cas thaum interphase?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Interphase hais txog txhua theem ntawm lub voj voog ntawm tes uas tsis yog mitosis. Thaum lub sij hawm interphase , cellular organelles ob npaug ntawm tus lej, DNA replicates, thiab protein synthesis tshwm sim . Cov chromosomes tsis pom thiab DNA zoo li tsis muaj chromatin.
Ib yam li ib tug yuav nug, yuav ua li cas tom qab interphase?
Ua raws interphase , lub cell nkag mus rau mitosis los yog meiosis, uas ua rau cell division (cytokinesis) thiab pib ntawm ib tug tshiab cell voj voog nyob rau hauv txhua tus ntxhais cell. Thaum lub sij hawm ob theem G, kev loj hlob ntawm tes, protein synthesis, thiab enzyme synthesis tshwm sim, thaum lub sij hawm S theem DNA yog replicated.
Ib qho ntxiv, yuav muaj dab tsi tshwm sim hauv 3 theem ntawm interphase? Muaj peb theem ntawm interphase : G1 (thawj qhov sib txawv), S (synthesis ntawm DNA tshiab), thiab G2 (qhov sib txawv thib ob). Cells siv feem ntau ntawm lawv lub neej nyob rau hauv interphase , tshwj xeeb hauv S theem qhov twg cov khoom siv caj ces yuav tsum tau theej. Lub xov tooj ntawm tes loj hlob thiab ua tiav cov haujlwm biochemical, xws li kev sib xyaw protein, hauv G1 theem.
Ntawm no, muaj dab tsi tshwm sim thaum lub sijhawm sib tham thiab nws suav nrog theem twg?
Interphase yog theem ntev tshaj plaws ntawm lub voj voog ntawm tes thiab tuaj yeem faib ua 3 theem :G 1 theem , S theem ,G 2 theem . Yog hais tias lub cell yuav faib, nws nkag mus rau hauv S (synthesis) theem qhov twg DNA yog replicated thiab G2 theem qhov twg loj hlob ntxiv tshwm sim.
Dab tsi tshwm sim g1 interphase?
Cov G1 theem feem ntau raug xa mus rau theem kev loj hlob, vim qhov no yog lub sijhawm uas cov cell loj hlob. Thaum lub sij hawm no, lub cell synthesizes ntau yam enzymes thiab cov as-ham uas xav tau tom qab rau DNA replication thiab cell division. Cov G1 theem tseem yog thaum cov cell tsim cov protein ntau tshaj.
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