Qhov sib txawv tseem ceeb ntawm mitosis thiab binary fission yog tias mitosis yog ib hom kev faib hluav taws xob uas tshwm sim hauv cov kab mob eukaryotic thiaj li tsim tau ob lub hlwb zoo tib yam los ntawm niam txiv lub xov tooj thaum binary fission yog hom kev sib deev / cell. Kev faib tawm uas tshwm sim hauv cov kab mob prokaryotic thiaj li ua kom ntau thiab nce lawv tus lej.
Txhua yam ntawm lub neej ntawm prokaryotes thiab eukaryotes yuav tsum muaj qee qhov kev sib npaug ntawm lawv lub tsev tseem ceeb; "cell" tsis hais qhov nyuaj ntawm lawv lub koom haum cellular. Yog li ntawd, cov txheej txheem no yog qhov tseem ceeb rau kev loj hlob thiab kev tsim dua tshiab hauv ntau cov kab mob hauv lub cev, nrog rau kev yug me nyuam asexual hauv qee cov kab mob unicellular. Hauv qhov no, cov txheej txheem ntawm ob qho tib si, mitosis thiab binary fission, pom tau tias muaj qhov tshwm sim zoo sib xws ntawm kev tsim ob chav los ntawm ib qho. Txawm li cas los xij, ua tib zoo saib xyuas qhov tob rau hauv ob qhov txheej txheem qhia qhov sib txawv ntawm mitosis thiab binary fission.
Mitosis yog dab tsi?
Mitosis yog cov txheej txheem ntawm kev tsim ob lub noob caj noob ces zoo tib yam diploid nuclei tawm ntawm ib lub nucleus hauv eukaryotic hlwb. Thaum kawg ntawm cov txheej txheem no, cytokinesis tshwm sim. Cytokinesis yog txheej txheem uas faib cov cell rau hauv ob lub hlwb los ntawm kev faib cov cytoplasm thiab cell organelles. Mitosis thiab cytokinesis sib sau ua ke ntawm theem mitotic ntawm lub voj voog ntawm tes. Lub cell npaj ib daim qauv ntawm nws cov chromosomes / genetic khoom nyob rau hauv lub nuclei ua ntej nws mus rau mitosis.
Qhov tseeb, mitosis yog txheej txheem nyuaj uas muaj ob peb ntu raws li cov xwm txheej uas tshwm sim hauv lub cell. Thaum lub sij hawm prophase, uas yog thawj theem ntawm mitosis, chromosomes condense, thiab mitotic spindle ua los ntawm microtubules pib tshwm sim, txuas cov opposite ncej ntawm lub cell. Tom qab ntawd, thaum lub sij hawm prometaphase, cov ntaub so ntswg nuclear ploj mus, thiab microtubular strands ntawm mitotic spindle txuas lawv tus kheej mus rau txhua tus chromatids ntawm centromere.
Daim duab 01: Mitosis
Yog li ntawd, cov chromosomes kho lawv tus kheej hauv cov phaj metaphase, uas yog lub dav hlau perpendicular mus rau spindle ntawm nruab nrab ntawm tes hauv metaphase. Sister chromatids tau sib cais ntawm lub centromere hauv anaphase, thiab lub xovtooj ntawm tes yuav muaj nws ob daim ntawv ntawm cov khoom siv caj ces sib cais. Telophase xaus mitosis los ntawm regenerating nuclear membrane nyob ib ncig ntawm txhua pawg ntawm cov khoom siv caj ces, tsim ob lub nuclei cais. Thaum kawg, cytokinesis yuav tsim ob lub noob caj noob ces zoo tib yam.
Dab tsi yog Binary Fission?
Binary fission yog ib hom kev yug me nyuam asexual uas siv los ntawm cov kab mob unicellular thiaj li ua rau ntau thiab nce lawv tiam neeg. Nws tsim cov xeeb ntxwv zoo ib yam los ntawm niam txiv lub hlwb. Raws li lub npe qhia, los ntawm ib lub xov tooj ntawm tes, nws tsim ob lub hlwb los ntawm kev faib cov cell ua ob qhov sib npaug. Feem ntau cov prokaryotes, feem ntau cov kab mob ua tawm binary fission thiab nce lawv cov lej hauv ib lub sijhawm me me.
Daim duab 02: Binary Fission
Thaum pib ntawm binary fission, genetic khoom replicates thiab ua ob npaug. Tom qab ntawd, txhua daim ntawv tsuas txuas rau lub cell membrane ntawm ob qhov chaw sib txawv. Tom ntej no, qhov kev faib cytoplasmic yuav tshwm sim los ntawm kev sib cais ob daim ntawv kawg ua rau cov caj ces zoo ib yam, ob lub hlwb sib cais.
Dab tsi zoo sib xws ntawm Mitosis thiab Binary Fission?
- Mitosis thiab binary fission yog hom kev faib cell uas tshwm sim hauv cov kab mob nyob.
- Tsis tas li, ob txoj kev tsim cov noob caj ces zoo ib yam ob tus ntxhais ntawm ib leeg niam txiv.
- Dhau li ntawm, cytokinesis yog ib qho txheej txheem rau ob qho tib si.
- Tsis tas li ntawd, DNA replication tshwm sim nyob rau hauv ob qho tib si mitosis thiab binary fission.
Qhov txawv ntawm Mitosis thiab Binary Fission yog dab tsi?
Mitosis yog ib qho ntawm ob hom kev faib cell loj tshwm sim hauv eukaryotic multicellular kab mob. Ntawm qhov tod tes, binary fission yog ib hom kev yug me nyuam asexual uas ua los ntawm cov kab mob unicellular prokaryotic. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm mitosis thiab binary fission. Tsis tas li, lwm qhov sib txawv tseem ceeb ntawm mitosis thiab binary fission yog tias, tsis zoo li binary fission, mitosis yog txheej txheem nyuaj uas muaj ntau theem.
Ntxiv mus, thaum lub sij hawm mitosis, cov qauv tshwj xeeb xws li mitotic spindle yuav raug tsim los pab hauv cov txheej txheem. Tab sis hauv binary fission, tsis muaj cov qauv zoo li no. Li no, nws yog lwm qhov sib txawv ntawm mitosis thiab binary fission. Tsis tas li ntawd, qhov sib txawv ntxiv ntawm mitosis thiab binary fission yog tias, thaum lub sij hawm mitosis, txhua DNA daim ntawv txuas mus rau mitotic spindle, tab sis nyob rau hauv binary fission luam ntawm DNA tsis txuas ncaj qha mus rau lub cell membrane. Tsis tas li ntawd, ib qho ntxiv qhov sib txawv ntawm mitosis thiab binary fission yog qhov mitosis tsuas yog kev faib cov nuclei xwb, hos binary fission koom nrog kev faib cov khoom siv caj ces nrog rau cov cytoplasm.
Hauv qab infographic muab cov ntaub ntawv ntxiv txog qhov sib txawv ntawm mitosis thiab binary fission.
Summary – Mitosis vs Binary Fission
Mitosis thiab binary fission yog ob txoj haujlwm zoo sib xws uas ua rau muaj ob tus ntxhais cell cell los ntawm niam txiv cell. Txawm li cas los xij, mitosis tshwm sim hauv ntau cov kab mob eukaryotic thaum lub binary fission tshwm sim hauv cov kab mob unicellular prokaryotic. Tsis tas li ntawd, mitosis suav nrog ntau theem sib txawv thaum binary fission yog cov txheej txheem yooj yim uas tsis muaj cov theem. Hauv mitosis, spindle tsim, txuas centromeres nrog spindle fibers, thiab lwm yam, tshwm sim thaum cov xwm txheej zoo li no tsis tshwm sim hauv binary fission. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm mitosis thiab binary fission.
