Video: Muaj pes tsawg chromosomes ib dos cag cell muaj?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov ntaub ntawv keeb kwm ntawm cov nroj tsuag, tsiaj thiab lwm yam kab mob eukaryotic nyob hauv ob peb (lossis ntau) tus kheej cov DNA molecules, lossis chromosomes. Piv txwv li, txhua tus tib neeg cell muaj 46 chromosome ua , thaum txhua lub xov tooj ntawm cov dos muaj 8 chromosomes . Txhua lub cell yuav tsum rov ua dua lawv cov DNA thaum faib.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog dos cag hlwb?
Ib dos hauv paus cov lus qhia yog ib feem loj hlob sai ntawm cov dos thiab yog li ntawd ntau hlwb yuav nyob rau theem sib txawv ntawm mitosis. Cov dos cag lus qhia tuaj yeem npaj thiab squashed nyob rau hauv ib txoj kev uas tso cai rau lawv yuav flattened ntawm ib tug microscopic slides, thiaj li hais tias cov chromosomes ntawm ib tug neeg. hlwb tuaj yeem pom tau yooj yim.
Ib sab saum toj no, vim li cas cov hauv paus dos yog cov qauv zoo? Cells ntawm dos yog loj hlob ces nws yog ib qho yooj yim mus nrhiav cov hlwb nyob rau hauv ntau theem ntawm mitosis. Daim ntawv lo rau theem thiab daim ntawv lo ntawm cov xov tooj ntawm tes uas pom tau. Cov spindle fibers thiab chromosomes yuav tsum pom.
Ib yam nkaus, tib neeg nug, pes tsawg lub cell nyob hauv anaphase hauv cov hauv paus cov hauv paus?
Cov hauv paus Cov Lus Qhia Mitosis
| Interphase | Prophase | |
|---|---|---|
| Cov xov tooj ntawm tes | 20 | 10 |
| Feem pua ntawm cov hlwb | 55.6% | 27.8% |
Qhov twg mitotic theem yog qhov yooj yim tshaj plaws los nrhiav hauv cov dos hauv paus?
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