Qhov sib txawv tseem ceeb ntawm telophase 1 thiab 2 yog tias telophase I yog lub sijhawm txiav tawm ntawm thawj qhov kev faib tawm ntawm meiosis thiab ua rau ob tug ntxhais hlwb thaum lub telophase II yog lub sijhawm txiav tawm ntawm qhov thib ob nuclear faib ntawm meiosis. thiab ua rau plaub tus ntxhais lub hlwb thaum kawg ntawm tus txheej txheem.
Meiosis yog ib qho ntawm ob txoj haujlwm tseem ceeb ntawm kev faib hluav taws xob. Yog li ntawd, nws yog ib qho tseem ceeb txheej txheem nyob rau hauv kev sib deev reproduction thaum lub sij hawm sib deev cell tsim. Meiosis tshwm sim ntawm ob qhov kev faib tawm nuclear uas yog meiosis I thiab meiosis II. Txhua qhov kev faib tawm nuclear muaj plaub subphases; prophase, metaphase, anaphase, thiab telophase. Telophase yog theem kawg ntawm ob qho tib si meiosis thiab mitosis uas ua tiav cov kev faib tawm nuclear. Telophase yog ua raws li cytokinesis (cytoplasmic division). Yog li, telophase 1 yog theem kawg ntawm meiosis I thaum lub telophase 2 yog theem kawg ntawm meiosis II. Ntxiv mus, telophase 2 zoo ib yam li telophase ntawm mitotic cell division. Lub hom phiaj ntawm tsab xov xwm no yog los qhia qhov txawv ntawm telophase 1 thiab 2.
Telophase 1 yog dab tsi?
Telophase 1 yog lub sijhawm txiav tawm ntawm meiosis I. Thaum pib ntawm theem no, txhua ib nrab ntawm cov cell muaj tag nrho cov chromosomes haploid uas muaj ob tug muam chromatids. Hauv telophase 1, kev hloov pauv ntawm lub hnab ntawv nuclear tshwm sim nyob ib puag ncig chromosome teeb thiab ntxaiv thiab astral rays maj mam ploj mus.
Daim duab 01: Meiosis
Tsis tas li ntawd, chromosomes pib decondense. Feem ntau, cytokinesis pib ib txhij nrog telophase 1 thiab ua rau ob lub hlwb haploid thaum kawg.
Telophase 2 yog dab tsi?
Telophase 2 yog theem kawg ntawm meiosis II. Nws yog qhov kev txiav tawm ntawm tag nrho cov txheej txheem meiosis. Hauv telophase 2, kev hloov pauv ntawm cov ntaub so ntswg nuclear thiab de-condensation ntawm chromosomes tshwm sim, thiab spindle apparatus ploj.
Daim duab 02: Telophase 2
Txawm li cas los xij, cov hlwb uas muaj meiosis ceev tsis tau decondensation. Thaum kawg, ib lub xov tooj ntawm niam txiv tsim plaub tus ntxhais, txhua tus muaj cov chromosomes haploid. Hauv theem no, txhua tus chromosome muaj ib chromatid tawm ntawm ob tus muam chromatids.
Qhov Zoo sib xws ntawm Telophase 1 thiab 2 yog dab tsi?
- Ob leeg telophase 1 thiab 2 tshwm sim hauv meiosis.
- Tsis tas li, ob lub telophases tshwm sim tom qab anaphase.
- Cytokinesis ua raws telophase.
- Nyob rau hauv ob qho tib si telophases, nuclear membrane hloov kho thiab kaw cov chromosomes.
- Tsis tas li ntawd, chromosomes de-condense hauv ob theem.
Qhov txawv ntawm Telophase 1 thiab 2 yog dab tsi?
Telophase 1 yog theem kawg ntawm meiosis kuv thaum telophase 2 yog theem kawg ntawm meiosis II. Tsis tas li ntawd, telophase 1 tshwm sim hauv ob lub hlwb, thaum telophase 2 ua rau plaub tus ntxhais nyob rau qhov kawg ntawm tus txheej txheem. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm telophase 1 thiab 2. Tsis tas li ntawd, hauv telophase 1, txhua tus chromosome muaj ob tus muam chromatids, tab sis hauv telophase 2, txhua chromosome tsuas muaj ib chromatid xwb. Li no, nws kuj yog qhov sib txawv ntawm telophase 1 thiab 2. Ntxiv mus, telophase 1 tshwm sim tom qab anaphase 1, thiab nws ua raws los ntawm cytokinesis. Ntawm qhov tod tes, telophase 2 tshwm sim tom qab anaphase 2, thiab nws ua raws los ntawm cytokinesis.
Hauv qab infographic muab cov ntsiab lus ntxiv ntawm qhov sib txawv ntawm telophase 1 thiab 2.
Summary – Telophase 1 vs 2
Meiosis muaj ob theem tseem ceeb; meiosis 1 thiab 2. Txhua lub meiosis muaj plaub ntu subphases; prophase, metaphase, anaphase thiab telophase. Raws li, telophase 1 yog subphase ntawm meiosis 1 thaum telophase 2 yog subphase ntawm meiosis 2.
Nyob rau hauv cov ntsiab lus sib txawv ntawm telophase 1 thiab 2; Thaum lub sij hawm telophase 1, nuclear membrane hloov nyob ib ncig ntawm lub haploid chromosome teeb thiab ces cov chromosomes pib decondense. Ntawm qhov tod tes, thaum lub sij hawm telophase 2, nuclear membrane hloov kho thiab encloses chromosome sets. Txawm li cas los xij, txhua tus chromosome tsuas muaj ib chromatid nyob rau theem no. Ntawm no kuj chromatids pib decondense. Thaum kawg ntawm telophase 1, ob lub hlwb haploid tsim los ntawm ib lub xovtooj thaum kawg ntawm telophase 2, plaub lub hlwb haploid tsim los ntawm ib lub xovtooj.
