Qhov sib txawv tseem ceeb ntawm kev faib tawm ntawm tes thiab mitosis yog tias kev faib cell yog hais txog cov txheej txheem xws li kev faib tawm nuclear thiab cytokinesis uas tsim cov ntxhais cell los ntawm niam txiv lub hlwb thaum mitosis hais txog kev faib cov niam txiv nucleus rau hauv ob hom caj ces zoo ib yam. ntxhais nuclei.
Tus kheej lub peev xwm rov ua dua yog suav tias yog ib qho ntawm cov yam ntxwv zoo ntawm cov kab mob nyob hauv feem ntau vim nws pab kev loj hlob thiab kev loj hlob. Ntxiv mus, nws tus kheej replication yog ib tug txheej txheem thiab nruam; li no, nws yog hu ua lub voj voog ntawm tes. Cell voj voog muaj plaub theem pib suav nrog kev faib cell, G1, S, thiab G2 theem. Mitosis yog hais txog kev faib tawm nuclear, thiab nws los ntawm kev faib cell. Tsis tas li ntawd, cytokinesis yog kauj ruam kawg ntawm kev faib cell.
Cell Division yog dab tsi?
Cell division yog txheej txheem ntawm tus kheej-replication uas ua rau cov ntxhais tshiab. Nws suav nrog ob txheej txheem: nuclear faib thiab cytokinesis. Tsis tas li ntawd, kev faib hluav taws xob tuaj yeem muab faib ua ob txoj hauv kev ua mitosis thiab meiosis. Mitotic cell division tsim cov noob caj noob ces zoo tib yam los ntawm cov hlwb somatic thaum meiosis tsim gametes los ntawm cov kab mob hlwb uas muaj cov ntsiab lus sib txawv.
Txawm li cas los xij, rau kev faib tawm tag nrho ntawm tes, ob qho tib si mitosis thiab meiosis yuav tsum xaus nrog cytokinesis. Qhov no kuj yog ib txoj kev tseem ceeb; Nyob rau hauv ob qho tib si, cytokinesis yog suav tias yog ib feem ntawm cell division. Cytokinesis yog qhov sib faib tiag tiag ntawm cytoplasm ua raws li kev faib tawm nuclear. Nyob rau hauv cov tsiaj hlwb, nws tshwm sim los ntawm kev constriction ntawm lub plasma membrane ntawm lub cell equator thaum, nyob rau hauv cov nroj tsuag hlwb, nws tshwm sim los ntawm kev tsim ib tug cell phaj ntawm lub cell equator.
Mitosis yog dab tsi?
Mitosis yog tus txheej txheem ntawm kev tsim ob tus ntxhais zoo tib yam noob nuclei los ntawm niam txiv nucleus. Nws tsuas yog tshwm sim hauv cov hlwb somatic thiab pab txoj kev loj hlob ntawm cov kab mob. Mitosis tshwm sim ntawm plaub theem: prophase, metaphase, anaphase, thiab telophase.
Daim duab 02: Mitosis
Ua ntej mitosis, DNA replication yuav tsum tshwm sim txhawm rau txhawm rau ua ob npaug ntawm cov chromosomes. Thaum lub sij hawm prophase, lub nuclear membrane thiab nucleolus ploj thaum chromosomes condense thiab pom. Nyob rau hauv metaphase, chromosomes teem lawv tus kheej ntawm lub cell equator raws li tus spindle tsim tiav. Cov chromosomes cais los ntawm cov centromeres thiab cais mus rau hauv tus muam chromatids. Ces tus muam chromatids pib sib cais thaum lub sij hawm anaphase. Thaum kawg, thaum chromosomes ncav cuag tus ncej ntawm tes, cov ntaub so ntswg nuclear pib hloov kho thiab nyob ib puag ncig txhua pawg chromosomes.
Dab tsi zoo sib xws ntawm Cell Division thiab Mitosis?
- Mitosis yog ib feem ntawm kev faib cell.
- Nyob rau hauv ob qho tib si cell division thiab mitosis, ib yam yog muab faib ua ob ntu.
- Tsis tas li ntawd, ob txoj kev yog cov txheej txheem tseem ceeb hauv ntau cov kab mob.
Qhov txawv ntawm Cell Division thiab Mitosis yog dab tsi?
Cell division yog txheej txheem ntawm tus kheej-replication ntawm cov hlwb uas ua rau cov hlwb tshiab los ntawm niam txiv cov hlwb. Txawm li cas los xij, mitosis yog kev faib tawm ntawm cov cell nucleus uas ua rau ob tus ntxhais zoo tib yam nuclei. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm kev faib cell thiab mitosis. Tsis tas li ntawd, kev faib cell suav nrog kev faib tawm nuclear thiab cytokinesis thaum mitosis muaj plaub theem: prophase, metaphase, anaphase, thiab telophase.
Ntxiv mus, qhov sib txawv ntxiv ntawm kev faib tawm ntawm tes thiab mitosis yog tias ob qho tib si somatic thiab cov kab mob tau txais kev faib tawm ntawm tes thaum tsuas yog cov hlwb somatic tau txais mitosis. Tsis tas li ntawd, kev faib cell yuav siv sij hawm ntau dua los ua kom tiav mitosis. Yog li, peb tuaj yeem xav txog qhov no ib yam li qhov sib txawv ntawm kev faib cell thiab mitosis.
Hauv qab infographic qhia txog qhov sib txawv ntawm kev faib cell thiab mitosis.
Summary – Cell Division vs Mitosis
Cell division yog txheej txheem uas tsim cov hlwb tshiab los ntawm niam txiv lub hlwb. Nws suav nrog nuclear kev faib thiab cytoplasmic division. Ntawm qhov tod tes, mitosis yog ib qho ntawm ob hom kev faib tawm nuclear. Mitosis tshwm sim nyob rau hauv ob tug ntxhais nuclei los ntawm niam txiv nucleus thiab tus ntxhais nuclei yog genetically zoo tib yam nrog cov niam txiv nucleus. Yog li, ob qho tib si cell division thiab mitosis yog cov txheej txheem tseem ceeb hauv cov kab mob nyob. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm cell division thiab mitosis.
