Nyob hauv cov hlwb feem ntau, centriole duplication tshwm sim thaum S theem thiab raug cim los ntawm kev tsim cov procentrioles ntawm qhov kawg ntawm txhua tus niam txiv centriole.
theem twg ntawm mitosis ua centrioles replicate?
Nyob rau thawj theem ntawm mitosis, hu ua interphase, centrioles replicate. Qhov no yog theem tam sim ua ntej kev faib cell, uas yog qhov pib ntawm mitosis thiab meiosis hauv lub voj voog ntawm tes.
Lub sijhawm twg centrioles tshwm sim?
New centrioles sib sau ua ke thaum S theem ntawm lub voj voog ntawm tes hauv kev faib hlwb.
Nyob rau theem twg ntawm lub voj voog ntawm tes puas centrosome duplication tshwm sim?
Lub voj voog centrosome muaj plaub theem uas tau synchronized rau lub voj voog ntawm tes. Cov no suav nrog: centrosome duplication thaum lub sij hawm G1 theem thiab S Phase, centrosome maturation nyob rau hauv G2 theem, centrosome sib cais nyob rau hauv lub mitotic theem, thiab centrosome disorientation nyob rau hauv lub lig mitotic theem-G1 theem.
Do centrioles replicate hauv meiosis?
Vim cov centrioles tsis rov ua dua ua ntej meiosis II faib, txhua tus meiotic II spindle ncej muaj tsuas yog ib qho centriole (Fig. 2G). Lub qe paub tab khaws ib lub centriole ntawm lub puab ncej ntawm meiosis II spindle. Ib qho centriolar centrosome ntawm meiosis II spindle ncej tsis tuaj yeem tsim bipolar spindles.
