2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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.
Pom zoo:
Qhov tshwm sim ntawm kev sib ntaus sib tua ntawm el alamein yog dab tsi?
Sib ntaus sib tua nyob ze thaj tsam sab hnub poob ntawm tim lyiv teb chaws ntawm 23 Lub Kaum Hli thiab 4 Kaum Ib Hlis 1942, El Alamein yog qhov kawg thiab hloov pauv ntawm North African phiaj los nqis tes ntawm Ntiaj Teb Tsov Rog Zaum Ob (1939-45).
Dab tsi ntawm cov hauv qab no yog qhov tshwm sim ntawm kev sib ntaus sib tua ntawm lub pas dej brandywine?
Cov txiaj ntsig ntawm Kev Sib Tw ntawm Brandywine Creek yog dab tsi? Washington tsuas yog sim ncua kev ntes Philadelphia kom nws ua tiav li no. Cov tub rog Asmeskas tsis tau poob siab ntau thiab lawv tau khiav tawm ntawm British. Washington tseem tuaj yeem kawm los ntawm nws qhov yuam kev ntawm kev tso nws txoj cai sab xis qhib.
Qhov kev tua ntawm qhov kev sib raug zoo tshwm sim nyob qhov twg?
Kev phom sij ntawm O.K. Corral yog 30-thib ob qhov kev sib tua ntawm cov neeg tsim cai lij choj coj los ntawm Virgil Earp thiab cov tswv cuab ntawm ib pawg neeg tawm tsam hu ua Cowboys suav nrog Ike Clanton uas tshwm sim thaum 3:00 teev tsaus ntuj.
Qhov twg yog qhov kev txiav txim siab rau kev tsis lees paub thiab rau kev ua kom muaj kev tawm tsam ntawm kev tawm tsam?
Kev qhuab ntuas tau siv los ntawm cov thawj coj loj hauv cov tub rog Romanrau txim rau cov koom haum lossis pab pawg loj ua txhaum cai, xws li kev ua phem, kev tawm tsam, kev tawm tsam, thiab kev tsis ncaj ncees, thiab rau lub pacification ntawm rebellious legions.
Qhov kev tshwm sim hauv lub neej tseem ceeb ntawm kev ntsuas kev ntsuas kev sib raug zoo twg muaj tus lej ntau tshaj?
Qhov kev tshwm sim ntawm qib siab tshaj yog tuag ntawm tus txij nkawm(nrog tus nqi nruab nrab ntawm 100), txheeb ze rau kev sib yuav, nrog tus nqi nruab nrab ntawm 50, thiab, piv txwv, kev tuag ntawm tus phooj ywg ze, uas tau qhab nia 37. Qhov xwm txheej tseem ceeb ntawm lub neej ntawm Kev Hloov Kho Kev Ntsuas Kev Ntsuas Qhov Ntsuas puas muaj cov lej hloov pauv lub neej ntau tshaj?
