Video: Lub hom phiaj ntawm kev tsim tawm ntawm tes yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub hom phiaj ntawm Cell Division . Cell faib yog txheej txheem tseem ceeb rau kev tsim, kev loj hlob, thiab kho lub cev. Muaj ob hom tseem ceeb ntawm cell faib nyob rau hauv tib neeg. Cells tuaj yeem faib ua cov qe menyuam , phev thiab qe.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog lub hom phiaj tseem ceeb ntawm cellular reproduction?
Muab tso yooj yim, lub lub hom phiaj ntawm cellular reproduction yog " yug me nyuam "ib daim ntawv theej ntawm lub cell preexisting. Cells ua tiav qhov no los ntawm thawj zaug luam lawv cov ntsiab lus thiab tom qab ntawd faib cov txiaj ntsig uas txhua qhov tshwm sim ob lub hlwb muaj cov khoom qub.
Ib tug kuj yuav nug, yuav ua li cas thiab vim li cas cov cell reproduce? Cov hlwb yog yug me nyuam rau kho cov ntaub so ntswg thiab kev loj hlob thiab kev loj hlob ntawm ib tug kab mob. Cell Kev faib tawm yog tsim nyog rau txhua yam kab mob loj hlob thiab, thaum nws tau tsim tag nrho, kom muaj kev noj qab haus huv cov ntaub so ntswg. Mitosis tshwm sim nyob rau hauv lub cev tag nrho tsim los hloov cov qub hlwb los yog kho cov ntaub so ntswg puas.
Tsis tas li ntawd, dab tsi yog 3 lub laj thawj vim li cas cov hlwb rov tsim dua?
Tag nrho cov noob caj noob ces ua rau lub cev lub genome. Txhua yam kab mob ntawm tib hom muaj tib tus lej ntawm chromosomes hauv lawv cov nuclei. Tag nrho hlwb txhim kho los ntawm uas twb muaj lawm hlwb . Qhov no ua rau cov kab mob multicellular loj hlob, hloov cov tuag hlwb , thiab yug me nyuam.
Cell reproduction txhais li cas?
Cellular reproduction yog ib tug txheej txheem uas hlwb duplicate lawv cov ntsiab lus thiab ces faib mus rau yield ob hlwb nrog zoo sib xws, yog tsis duplicate, txheem. Nkag siab txog cov txheej txheem no yog pab kom nkag siab lub hauv paus rau tib neeg kev yug me nyuam raws li zoo raws li lub hauv paus rau tiam ntawm lub neej nyob rau hauv lwm cov chav kawm ntawm cov kab mob.
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
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