2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Thaum lub sijhawm metaphase, lub kinetochore microtubules rub tus muam chromatids viv ncaus chromatids Tus viv ncaus chromatids yog khub ntawm cov ntawv luam zoo sib xws ntawm DNA koom nrog ntawm qhov taw teshu ua centromere. Thaum lub sij hawm anaphase, txhua khub ntawm chromosomes tau muab cais ua ob qho tib si, chromosomes ywj siab. Cov chromosomes tau sib cais los ntawm cov qauv hu ua mitotic spindle. https://www.nature.com › scitable › definition › anaphase-179
anaphase | Kawm Science ntawm Scitable - Nature
rov qab mus txog rau thaum lawv ua raws txoj kab nruab nrab ntawm lub xovtooj, hu ua equatorial dav hlau. Muaj qhov chaw kuaj xyuas tseem ceeb hauv nruab nrab ntawm mitosis, hu ua metaphase checkpoint, thaum lub sij hawm lub cell kom paub meej tias nws npaj txhij los faib.
Yuav ua li cas hauv metaphase ntawm mitosis yooj yim?
Metaphase. Chromosomes kab nyob rau ntawm lub phaj metaphase, nyob rau hauv nro los ntawm mitotic spindle. Ob tug viv ncaus chromatids ntawm txhua tus chromosome raug ntes los ntawm microtubules los ntawm cov ncej spindle. Hauv metaphase, tus ntxaiv tau ntes tag nrho cov chromosomes thiab muab lawv tso rau ntawm nruab nrab ntawm lub xovtooj, npaj los faib.
Yuav ua li cas thaum lub sijhawm metaphase hauv meiosis?
Nyob rau hauv metaphase I, cov khub homologous ntawm chromosomes dlhos rau ntawm ob sab ntawm lub phaj equatorial. … Txhua tus ntxhais cell yog haploid thiab tsuas muaj ib pawg chromosomes xwb, los yog ib nrab ntawm tag nrho cov chromosomes ntawm thawj cell. Meiosis II yog mitotic divisionntawm txhua lub hlwb haploid tsim nyob rau hauv meiosis I.
Yuav ua li cas thaum lub sijhawm metaphase thiab anaphase ntawm mitosis?
Dab tsi tshwm sim thaum Metaphase thiab Anaphase? Raws li prometaphase xaus thiab metaphase pib, cov chromosomes ua raws li cov xov tooj ntawm tes. … Metaphase ua rau anaphase, thaum lub sij hawm uas txhua tus chromosome tus muam chromatids cais thiab txav mus rau opposite ncej ntawm lub cell.
Yuav ua li cas hauv metaphase ntawm mitosis thiab meiosis?
Metaphase yog ib theem ntawm lub voj voog ntawm tes uas tshwm sim hauv ob qho tib si mitosis thiab meiosis cell division processes. Thaum lub sij hawm metaphase nyob rau hauv mitosis thiab meiosis, cov chromosomes condense thiab lawv pom thiab paub qhov txawv thaum lub sij hawm kev sib raug zoo ntawm qhov chaw ntawm lub cell faib, tsim ib tug metaphase phaj nyob rau hauv nruab nrab ntawm lub cell.
Pom zoo:
Ntawm metaphase ntawm mitosis?
Metaphase yog ib theem thaum lub sijhawm kev faib cell (mitosis lossis meiosis). Feem ntau, tus neeg chromosomes tsis tuaj yeem pom nyob rau hauv cell nucleus. Txawm li cas los xij, thaum lub sij hawm metaphase ntawm mitosis los yog meiosis cov chromosomes condense thiab ua qhov txawv raws li lawv nyob hauv nruab nrab ntawm lub cell faib.
Lub sijhawm kuv lub sijhawm dawb lossis thaum kuv lub sijhawm dawb?
yog li, qhov no txhais tau tias "thaum kuv lub sijhawm dawb" tsis siv ntauthiab koj muab "hauv kuv lub sijhawm dawb" ntau dua nyob rau qhov kawg ntawm kab lus. Piv txwv li: Kuv tau taug kev tus dev thaum kuv lub sijhawm dawb.
Lub sijhawm nyob qhov twg ntawm lub sijhawm teem sijhawm?
kab kab rov tav ntawm lub rooj ntu ntu yog hu ua ntu ntu. Lub sijhawm nyob rau ntawm lub sijhawm nyob qhov twg? Ib lub sijhawm yog kab kab rov tav ntawm lub rooj ntu ntu. Muaj xya lub sij hawm nyob rau hauv lub sij hawm ntawm lub sij hawm, nrog txhua tus pib ntawm sab laug.
Thaum lub sijhawm metaphase cov chromosomes kho lawv tus kheej ntawm?
Thaum lub sijhawm metaphase, lub xov tooj ntawm tes chromosomes kho lawv tus kheej nyob rau hauv nruab nrab ntawm lub xovtooj los ntawm hom cellular "tug of war." Cov chromosomes, uas tau hloov dua tshiab thiab tseem koom nrog ntawm lub hauv paus ntsiab lus hu ua centromere, hu ua tus muam chromatids viv ncaus chromatids Tus muam chromatids yog khub ntawm cov ntawv luam zoo tib yam ntawm DNA koom ntawm qhov taw teshu ua chaw nyob.
Thaum lub sijhawm tseem ceeb ntawm mitosis cov chromosomes yog?
Nqe Lus Nug: Thaum lub sij hawm tseem ceeb ntawm mitosis, cov chromosomes yog txav deb ntawm ib leeg mus rau cov ncej sab nraud ntawm tes O nyob rau hauv nruab nrab ntawm tes O rov qab mus rau chromatin daim ntawv txuas mus rau mitotic spindle microtubules ntawm centromere merphase Lub voj voog ntawm tes tau muab faib ua ob qhov tseem ceeb, … Cov chromosomes nyob qhov twg thaum lub sij hawm tseem ceeb ntawm mitosis?
