Video: Cov kauj ruam ntawm mitosis yog dab tsi thiab dab tsi tshwm sim hauv txhua qhov?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Mitosis muaj tsib theem sib txawv: interphase, prophase , metaphase , anaphase thiab telophase . Cov txheej txheem ntawm kev faib cell tsuas yog ua tiav tom qab cytokinesis, uas tshwm sim thaum lub sijhawm anaphase thiab telophase . Txhua theem ntawm mitosis yog tsim nyog rau cell replication thiab faib.
Thiab cov lus nug yog, dab tsi yog theem ntawm mitosis thiab dab tsi tshwm sim hauv txhua qhov?
Mitosis yog cov txheej txheem uas cov nucleus ntawm eukaryotic cell faib. Thaum lub sijhawm txheej txheem no, tus muam chromatids cais tawm ntawm ib leeg thiab txav mus rau cov ncej ntawm tes. Qhov no tshwm sim hauv plaub theem, hu ua prophase, metaphase , anaphase , thiab telophase.
Tsis tas li ntawd, yuav ua li cas tshwm sim hauv prophase ntawm mitosis? Prophase yog thawj theem hauv mob mitosis , tshwm sim tom qab qhov xaus ntawm G2 ib feem ntawm interphase. Thaum prophase , niam txiv ntawm tes chromosomes - uas tau duplicated thaum lub sij hawm S theem - condense thiab ua ntau txhiab zaus ntau compact tshaj lawv nyob rau hauv interphase.
Xav txog qhov no, mitosis hauv biology yog dab tsi?
Mitosis yog ib txoj kev uas ib lub xovtooj sib faib ua ob lub hlwb zoo tib yam (cell division). Thaum mob mitosis ib cell? faib ib zaug los tsim ob lub hlwb zoo ib yam. Lub hom phiaj tseem ceeb ntawm mob mitosis yog rau kev loj hlob thiab hloov pauv cov cell uas ploj lawm.
Tus txheej txheem ntawm meiosis yog dab tsi?
Meiosis yog a txheej txheem qhov twg ib lub cell faib ob zaug los tsim plaub lub hlwb uas muaj ib nrab ntawm cov ntaub ntawv keeb kwm yav dhau los. Cov hlwb no yog peb cov poj niam cev xeeb tub - phev hauv txiv neej, qe hauv poj niam.
Pom zoo:
Thawj kauj ruam ntawm kev ua pa ntawm tes yog dab tsi thiab nws tshwm sim qhov twg?
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