Muam chromatids yog ob daim ntawv theej tib yam ntawm tib chromosome tsim los ntawm DNA replication, txuas rau ib leeg los ntawm tus qauv hu ua the centromere.
tus muam chromatids nyob qhov twg?
Tus muam chromatids zoo ib yam rau ib leeg thiab txuas rau ib leeg los ntawm cov protein hu ua cohesins. Kev sib txuas ntawm tus muam chromatids yog nruj tshaj plaws ntawm lub centromere, thaj tsam ntawm DNA uas yog qhov tseem ceeb rau lawv kev sib cais thaum lub sij hawm tom qab ntawm kev faib cell.
Yuav ua li cas tuav tus muam chromatids ua ke?
Muam chromatids tau tuav ua ke los ntawm proteins ntawm thaj tsam ntawm chromosome hu ua centromere. Chromosomes undergo ntxiv compaction thaum pib ntawm mitosis.
Dab tsi yog ob chromatids ua ke hu ua?
Ib khub niam txiv chromatids hu ua a dyad Thaum tus muam chromatids tau sib cais (thaum lub sij hawm anaphase ntawm mitosis los yog anaphase II ntawm meiosis thaum muaj kev sib deev), lawv rov hu ua chromosomes, txhua tus muaj tib lub noob caj noob ces raws li ib tug ntawm cov chromatids ib tug neeg uas ua rau nws niam nws txiv.
Puas cohesin tuav tus muam chromatids ua ke?
Muam chromatid cohesion nyob ntawm cohesin, ib qho tripartite complex uas tsim cov qauv nplhaib rau tuav tus muam chromatids ua ke hauv mitosis thiab meiosis.
