Cov txheej txheem:
- Puas synapsis tshwm sim hauv prophase 2?
- Lub sijhawm twg ntawm meiosis hla thiab synapsis tshwm sim?
- Yuav ua li cas rau theem 1 synapsis tshwm sim?
- 5 theem ntawm prophase 1 yog dab tsi?
Video: Thaum twg synapsis tshwm sim?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Synapsis tshwm sim thaum lub sijhawm prophase I ntawm meiosis. Thaum homologous chromosomes synapse, lawv qhov kawg yog thawj zaug txuas rau lub hnab ntawv nuclear. Cov kawg-membrane complexes ces tsiv teb tsaws, pab los ntawm extranuclear cytoskeleton, kom txog rau thaum qhov sib tw kawg tau ua khub.
Puas synapsis tshwm sim hauv prophase 2?
Lwm nqe lus nug yog seb qhov kev sib tham puas tau tshwm sim thaum lub sijhawm prophase II ntawm meiosis II lossis seb nws tuaj yeem tshwm sim thaum lub sijhawm prophase ntawm mitosis. Thaum meiosis kuv, meiosis II, thiab mitosis tag nrho suav nrog prophase, synapsis raug txwv rau prophase I ntawm meiosis vim tias qhov no yog tib lub sijhawm homologous chromosomes ua ke nrog ib leeg.
Lub sijhawm twg ntawm meiosis hla thiab synapsis tshwm sim?
Yog, hla dhau tshwm sim thaum lub sijhawm sib tham thaum cov chromosomes tau ntim rau hauv tetrads. Qhov no tshwm sim hauv prophase of meiosis I.
Yuav ua li cas rau theem 1 synapsis tshwm sim?
Meiotic Arrest nyob rau theem Diplotene ntawm Prophase I
Nyob rau theem leptotene cov chromatin npaj rau hauv ntev thiab nyias strands thiab ntawm zygotene theem cov synapsis ntawm homologous chromosomes tshwm sim, txhawb nqa los ntawm kev sib sau ua ke ntawm lub hauv paus ntsiab lus ntawm synaptonemal complex.
5 theem ntawm prophase 1 yog dab tsi?
Prophase kuv muab faib ua tsib theem: leptotene, zygotene, pachytene, diplotene, thiab diakinesis.
Pom zoo:
Puas yog kev tshwm sim lossis kev tshwm sim?
Reveling, kuj spelled reveling, txhais tau tias muaj lub sij hawm zoo, los yog zoo siab rau ib yam dab tsi. Yog tias koj tawm mus ua kev zoo siab rau koj kawm tiav thiab koj haus dej haus, tog thiab muaj lub sijhawm zoo, qhov no yog qhov piv txwv ntawm thaum koj rov qab los .
Puas yog nws tshwm sim lossis tshwm sim?
Raws li lub npe qhov txawv ntawm qhov tshwm sim thiab qhov tshwm sim. yog happenchance is a coincidental happen while happenstance is (countable) a chance or random event or random events . Puas yog ib lo lus? Ib qho xwm txheej tsis tau xav txog:
Puas muaj qhov sib txawv ntawm qhov tshwm sim thiab qhov tshwm sim?
Raws li lub npe qhov txawv ntawm qhov tshwm sim thiab qhov tshwm sim. yog happenchance is a coincidental happen while happenstance is (countable) a chance or random event or random events . Puas muaj lo lus tshwm sim? : a xwm txheej tshwj xeeb yog vim muaj caij nyoog Lawv tuaj ua ke los ntawm qhov tshwm sim .
Yuav ua li cas tshwm sim hauv kuv mob siab heev tshwm sim?
Thaum zaj yeeb yaj kiab tsis qhia meej raws li ib zaj dab neeg tseeb, nws yog tsim los ntawm cov xwm txheej hauv lub neej tiag tiag: yog, ntau tus neeg saib xyuas kev dag ntxias tau nyiag kev nplua nuj thiab kev ywj pheej ntawm suav tsis txheeb.
Cov siphons tshwm sim thiab tshwm sim nyob qhov twg?
Ntawm ob qhov qhib ntawm tom qab kawg ntawm clam. Qhov qhib qhov ntau dua yog cov siphon uas tshwm sim uas nqa dej mus rau hauv cov clam thiab qhov qhib qhov rooj ntau dua yog cov siphon uas tshwm sim uas cov khib nyiab & dej tawm . Cov kab mob dab tsi muaj tshwm sim thiab Excurrent siphon?
