Video: Qhov txawv ntawm prophase 1 thiab prophase 2 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Prophase Kuv yog theem pib ntawm Meiosis Iwhile Prophase II yog theem pib ntawm Meiosis II. Nws muaj qhov cuam tshuam ntev ua ntej Prophase kuv, hos Prophase II tshwm sim tsis muaj interphase. Kev sib koom ua ke ntawm homologous chromosomes tshwm sim hauv Prophase Kuv, whereas xws li txheej txheem yuav tsis pom nyob rau hauv Prophase II.
Ntawm no, qhov txawv ntawm prophase thiab prophase 1 yog dab tsi?
1 : Homologous?chromosomes?uas yog koom nrog hauv? prophase ? 1 . Prophase 2: Ib tus neeg chromosomes puas koom nrog hauv? prophase ?2. Prophase ? 1 :? Prophase ? 1 tshwm sim hauv?diploid?cells. Prophase ?2:? Prophase 2? tshwm sim hauv?haploid?cells.
Tom qab ntawd, lo lus nug yog, dab tsi tshwm sim thaum lub sijhawm prophase kuv? Thaum lub sij hawm prophase I , lawv coil thiab ua shorterand thicker thiab pom nyob rau hauv lub teeb microscope. Duplicatedhomologous chromosomes khub, thiab hla dhau (kev sib hloov ntawm lub cev ntawm chromosome) tshwm sim . Lub hnab ntawv nuclear ploj lawm ntawm kawg ntawm prophase kuv , cia cov spindle nkag mus rau hauv lub nucleus.
Ib yam li ntawd, ua li cas hauv prophase 2?
Meiosis II pib yam tsis muaj kev rov ua dua tshiab ntawm cov chromosomes. Hauv prophase II , lub hnab ntawv nuclear tawg thiab cov ntaub ntawv spindle apparatus. Thaum chromosomeduplication tshwm sim ua ntej meiosis kuv, tsis muaj chromosomereplication tshiab tshwm sim ua ntej meiosis II . Lub centriolesduplicate.
Puas yog Kev Hla Dhau tshwm sim hauv prophase II?
Cov hla dhau ntawm homologous chromosomes tshwm sim hauv prophase Kuv yog meiosis. Prophase II zoo ib yam li prophase hauv mob mitosis nyob rau hauv hais tias muaj kev puas tsuaj ntawm cov ntaub so ntswg nuclear thiab tsim cov spindlefibers hauv kev npaj rau kev sib cais ntawm sisterchromatids.
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