Video: Nyob qhov twg chromatids pom nyob rau hauv ib lub cell?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov khoom siv caj ces los yog chromatids yog nyob nyob rau hauv lub nucleus ntawm lub cell thiab yog tsim los ntawm molecule DNA.
Tsis tas li ntawd, qhov twg yog chromatin pom nyob rau hauv ib lub cell?
Chromatin yog ib pawg ntawm cov khoom siv caj ces muaj xws li DNA thiab cov proteins uas condense los tsim chromosomes thaum lub sij hawm eukaryotic cell kev faib. Chromatin yog nyob nyob rau hauv lub nucleus ntawm peb hlwb.
Ib yam li ntawd, cov hlwb tshiab hu ua dab tsi thiab lawv piv li cas? Kev Xeem Loj Loj
| Lus nug | Teb |
|---|---|
| Dab tsi theem tshwm sim tom qab cytokinesis? | G1 |
| Dab tsi ntawm cov cell faib thaum lub sij hawm cytokinesis? | Cytoplasm |
| Lub hlwb tshiab hu ua dab tsi thiab ua li cas lawv sib piv nrog lwm tus? | Daughter Cells thiab lawv ua tib lub hlwb |
| Dab tsi yog qhov tseem ceeb tshwm sim rau lub cell thaum G1? | Kev loj hlob ntawm tes |
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog chromatids tuav ua ke?
Ob qho tib si chromosomes uas tshwm sim los ntawm DNA replication yog hu ua tus muam chromatids . Muam chromatids yog tuav ua ke los ntawm proteins ntawm ib cheeb tsam ntawm chromosome hu ua centromere.
Dab tsi ua raws li mitosis?
Cov mitotic theem ua raws li interphase. Mitosis yog nuclear kev faib thaum lub sij hawm uas duplicated chromosomes yog cais thiab faib mus rau hauv tus ntxhais nuclei. Feem ntau cov cell yuav faib tom qab mob mitosis hauv a txheej txheem hu ua cytokinesis nyob rau hauv uas lub cytoplasm muab faib thiab ob tug ntxhais hlwb raug tsim.
Pom zoo:
Nyob qhov twg chromosomes pom nyob rau hauv ib lub cell?
nucleus Ntawm no, qhov twg chromosomes pom nyob rau hauv lub xeev cell lawv ua haujlwm? Chromosomes yog nyob nyob rau hauv lub nucleus ntawm tsiaj thiab nroj tsuag hlwb . Txhua chromosome yog tsim los ntawm cov proteins (histones thiab non-histones) thiab ib qho molecule ntawm deoxyribonucleic acid (DNA).
Yuav ua li cas cov txheej txheem ntawm cell faib nyob rau hauv eukaryotes feem ntau zoo ib yam li cell faib nyob rau hauv prokaryotes?
Tsis zoo li eukaryotes, prokaryotes (uas suav nrog cov kab mob) tau txais ib hom kev faib cell hu ua binary fission. Hauv qee qhov, cov txheej txheem no zoo ib yam li mitosis; Nws yuav tsum tau rov ua dua ntawm cov cell chromosomes, cais ntawm cov theej DNA, thiab kev sib cais ntawm niam txiv cell cytoplasm
Nyob qhov twg cov chromosomes pom nyob rau hauv ib tug eukaryotic cell?
Cell nucleus
Lub ntsiab lus twg yog pom nyob rau hauv qhov tsuas yog nyob rau hauv tebchaw quizlet?
Halogens yeej ib txwm pom nyob rau hauv cov xwm txheej incompounds vim hais tias halogens yog heev reactivenonmetals
Nyob rau theem twg DNA nyuaj tshaj plaws kom pom nyob rau hauv lub tshuab tsom iav?
DNA yog qhov nyuaj tshaj plaws kom pom ntawm prophase theem ntawm mitosis. Kev piav qhia: Nyob rau theem prophase, tsis muaj cov chromosomes txhais tau zoo. DNA yog tam sim no nyob rau hauv daim ntawv ntawm nyias chromatin fibers uas nyuaj rau pom nyob rau hauv lub microscope