Dab tsi yog qhov cuam tshuam ntawm mitosis hauv lub cell uas tau kho nrog colchicine?
Dab tsi yog qhov cuam tshuam ntawm mitosis hauv lub cell uas tau kho nrog colchicine?

Video: Dab tsi yog qhov cuam tshuam ntawm mitosis hauv lub cell uas tau kho nrog colchicine?

Video: Dab tsi yog qhov cuam tshuam ntawm mitosis hauv lub cell uas tau kho nrog colchicine?
Video: Dab neeg Niam tais vam ntau 26/5/2017 2024, Kaum ib hlis
Anonim

Piav txog qhov Cov teebmeem ntawm mitosis hauv cov cell uas tau kho nrog colchicine . Thaum a cell yog kho nrog colchicine , spindle fibers yuav tsis tsim kom raug. Yog li cov chromosomes yuav tsis tuaj yeem muab faib kom raug lossis hloov mus rau txoj haujlwm tsim nyog hauv kev faib. cell.

Ib yam li ntawd, koj tuaj yeem nug, colchicine cuam tshuam dab tsi rau mitosis?

Cov nyhuv ntawm tshuaj colchicine , uas inhibits microtubule polymerization thiab yog li sib dhos ntawm cov mitotic spindle, qhia pom muaj lwm qhov chaw kuaj xyuas hauv lub voj voog ntawm tes. Thaum twg tshuaj colchicine yog ntxiv rau kab lis kev cai, cov hlwb nkag mob mitosis thiab ntes nrog condensed chromosomes.

Ib tug kuj yuav nug, yuav ua li cas tshwm sim rau thawj cell tom qab mitosis? Ib zaug mob mitosis yog tiav, cov cell muaj ob pawg ntawm 46 chromosomes, txhua tus nyob nrog lawv tus kheej daim nyias nyias. Cov cell Tom qab ntawd faib ua ob los ntawm cov txheej txheem hu ua cytokinesis, tsim ob lub clones ntawm cov qub cell , txhua tus muaj 46 monovalent chromosomes.

Nyob rau hauv no, dab tsi cell qauv cuam tshuam los ntawm colchicine?

Colchicine yog microtubule-depolymerizing tus neeg sawv cev uas tau ntev tau siv los ntxias chromosome tus kheej hauv hlwb raug ntes ntawm metaphase thiab tseem nyob rau hauv induction ntawm polyploid nroj tsuag.

Vim li cas mitosis tseem ceeb hauv lub hauv caug tawv?

Yuav kom a tawv hauv caug kom kho tau, cov hlwb tshiab yuav tsum tau tsim. Txhawm rau kom cov nroj tsuag loj hlob, cov cell tshiab yuav tsum tsim. Cov txheej txheem ntawm cov hlwb tshiab tsim suav nrog mob mitosis , qhov twg cov chromosomes yuav tsum tau ua tib zoo muab faib rau hauv cov hlwb tshiab kom lawv zoo ib yam li qub cell.

Pom zoo: