2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Metaphase ua rau anaphase, lub sijhawm uas txhua tus chromosome tus viv ncaus chromatids cais thiab txav mus rau cov ncej ntawm tes. Enzymatic tawg ntawm cohesin - uas txuas cov viv ncaus chromatids ua ke thaum lub sijhawm prophase - ua rau qhov kev sib cais no tshwm sim.
Puas tus muam chromatids cais thaum anaphase 1 lossis 2?
In anaphase I, cov chromosomes homologous tau sib cais. Hauv prometaphase II, microtubules txuas mus rau kinetochores ntawm tus viv ncaus chromatids, thiab tus muam chromatids yog teem rau ntawm nruab nrab ntawm cov hlwb hauv metaphase II. Hauv anaphase II, tus muam chromatids tau sib cais.
tus muam chromatids cais dab tsi?
Tus muam chromatids yog khub ntawm cov ntawv luam zoo tib yam ntawm DNA koom nrog ntawm qhov chaw hu ua centromere. Thaum lub sij hawm anaphase, txhua khub ntawm chromosomes tau muab cais ua ob qho tib si, chromosomes ywj siab. … Tus muam chromatids tau sib cais ib txhij ntawm lawv cov centromeres.
Tus muam chromatids cais thaum lub sijhawm meiosis?
Meiosis II yog kev faib thib ob ntawm meiosis. Nws tshwm sim nyob rau hauv ob qho tib si ntawm cov ntxhais tshiab tsim lub hlwb ib txhij. Meiosis II zoo ib yam li Mitosis nyob rau hauv uas tus muam chromatids yog cais.
Yuav ua li cas thaum cytokinesis?
Cytokinesis yog lub cev txheej txheem ntawm kev faib cell, uas faib cov cytoplasm ntawm niam txiv cell rau hauv ob tug ntxhais hlwb. Lub nplhaib contractileshrinks ntawm tus kab zauv ntawm lub cell, pinching lub plasma membrane nyob rau hauv, thiab ua dab tsi hu ua cleavage furrow. …
Pom zoo:
Puas yog ob tug menyuam ntxaib ntawm tus muam tus muam?
Mary-Kate Olsen yog tus tsim qauv Asmeskas zam, yav dhau los ua yeeb yam thiab tsim tawm. Nws pib nws txoj hauj lwm ua yeeb yam cuaj hlis tom qab nws yug los, sib koom lub luag haujlwm ntawm Michelle Tanner nrog nws tus muam ntxaib Ashley Olsen hauv TV sitcom Full House.
Puas yog tus muam ib yam li ib nrab tus muam?
Ib tug niam yau yog ib tug ntxhais ntawm niam txiv los yog txiv hlob ntawm kev sib yuav yav dhau los whereas ib nrab tus muam yog ib tug muam uas ib leeg tsuas yog ib tug niam txiv sib koom. … Nws yog vim ib nrab cov viv ncaus sib koom ib tug niam txiv thaum cov niam txiv tsis muaj niam txiv.
Vim li cas 7 tus muam hu 7 tus muam?
Lub xeev qaum teb yog feem ntau hu ua Seven Sister states vim lawv sib koom ib leeg. Tag nrho cov xeev no txuas nrog Is Nrias teb ntawm Siliguri Corridor. Yog li ntawd, qhov ntawd yog tib txoj hauv kev kom mus txog Lub Xya Hli Ntuj. Leej twg muab lub npe Xya Hli Ntuj?
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.
