Qhov sib txawv tseem ceeb ntawm interphase chromatin thiab mitotic chromosome yog cov qauv tsim ntawm chromatin thaum pom nyob rau hauv lub tshuab tsom. Thaum interphase chromatin zoo nkaus li cov qauv zoo li xov, mitotic chromosomes tshwm sim raws li cov qauv sib txawv.
Interphase thiab mitosis yog ob theem tseem ceeb ntawm kev faib cell. Interphase yog lub sijhawm ntev tshaj ntawm kev faib cell, thiab mitosis yog lub sijhawm luv tshaj ntawm kev faib cell. Interphase muaj nyob nruab nrab ntawm ob theem ua tiav mitosis. Chromosomes tam sim no nyob rau hauv ob theem muaj ntau yam biochemical zog. Tsis tas li ntawd, lawv muaj qhov sib txawv ntawm cov qauv zoo ib yam.
Interphase Chromatin yog dab tsi?
Interphase chromatin yog cov xov zoo li tus chromosome uas muaj nyob rau hauv kev sib faib ntawm tes. Thaum lub sij hawm interphase, chromatin zoo li diffused thiab unorganized. Yog li ntawd, lawv tsis pom meej. Cov qauv zoo li cov xov no muaj nyob rau ntawm qhov cuam tshuam rau lub sijhawm ntev dua cov khoom noj khoom haus, ua ke cov proteins, thiab tsim cov organelles tshiab.
Daim duab 01: Chav tsev ntawm Chromatin Lub Koom Haum hauv Nucleosome
Lub cim tshiab ntawm cov organelles pab hauv kev hloov DNA. Thaum kawg ntawm lub interphase, lub xovtooj ntawm tes npaj txhij mus rau hauv lub mitotic theem. Nyob rau theem no, kev hloov pauv tseem ceeb tshwm sim hauv interphase chromatin. Qhov pom kev hloov pauv tshaj plaws yog cov txheej txheem condensation. Interphase chromatin hloov pauv sib txawv ntawm peb theem ntawm interphase. Lawv yog G1 theem, S theem, thiab G2 theem. Condensation tshwm sim ntawm G2 theem. Thaum lub sij hawm condensation, ib qho SMC protein hu ua condensin khi rau ib qho interphase chromatin ntawm qhov chaw sib txawv, twisting chromatin rau txawv coils thiab lops. Qhov no ua rau cov interphase chromatin rau hauv cov pas nrig-zoo li tus qauv uas yuav nkag mus rau mitosis tom qab.
Mitotic Chromosomes yog dab tsi?
Mitotic chromosomes yog cov pas nrig sib txawv, cov chromosomes condensed heev uas muaj nyob rau hauv mitotic theem ntawm cell division. Mitotic chromosomes yog qhov txawv heev vim yog cov duab thiab tus nqi ntawm condensation. Qhov no tshwm sim ntawm qhov cuam tshuam ntawm lub voj voog ntawm tes nrog kev koom tes ntawm condensin, SMC protein. Mitotic chromosomes yuav hloov pauv biochemical sib txawv raws li plaub theem ntawm mitosis. Lawv yog prophase, metaphase, anaphase, thiab telophase.
Daim duab 02: Mitosis
Thaum lub sijhawm mitotic, mitotic chromosomes tau txuas rau cov qauv hu ua mitotic spindle. Mitotic chromosomes kab ntawm lub phaj metaphase. Microtubules txuas nrog cov centrosomes ntawm cov kab mitotic chromosomes. Thaum lub sij hawm anaphase, cov mitotic chromosomes (tus muam chromosomes) faib sib npaug. Tom qab ntawd, lawv txav mus rau qhov sib txawv ncej. Thaum lub sij hawm telophase, cov cell tshiab pib tsim ntawm ob kawg, tsim ob lub hlwb tshiab ua raws li cytokinesis.
Dab tsi yog qhov zoo sib xws ntawm Interphase Chromatin thiab Mitotic Chromosomes?
- Interphase chromatin thiab mitotic chromosomes yog hom chromosomes.
- Ob hom koom nrog hauv lub voj voog ntawm tes.
- Lawv muaj DNA
- Ob hom yog qhov tseem ceeb rau kev loj hlob thiab kev tsim tawm ntawm ntau cov kab mob.
Qhov txawv ntawm Interphase Chromatin thiab Mitotic Chromosomes yog dab tsi?
Qhov sib txawv tseem ceeb ntawm interphase chromatin thiab mitotic chromosomes yog tias interphase chromatin zoo nkaus li cov xov zoo li cov qauv thaum mitotic chromosomes tshwm sim raws li cov qauv sib txawv. Ntxiv mus, interphase chromatins tsawg condensed, thaum mitotic chromosomes yog hnyav condensed.
Cov hauv qab no qhia txog qhov sib txawv ntawm interphase chromatin thiab mitotic chromosomes hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Interphase Chromatin vs Mitotic Chromosomes
Interphase chromatin zoo nkaus li cov qauv zoo li xov uas muaj cov hws tsawg. Mitotic chromosomes tshwm sim raws li tus pas nrig-zoo li tus qauv, thiab lawv yog condensed ntau. Ob qho tib si interphase chromatin thiab mitotic chromosomes yog qhov tseem ceeb rau lub voj voog ntawm cell division. Ob hom kev hloov pauv biochemical sib txawv ntawm lawv txoj haujlwm. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm interpahse chromatin thiab mitotic chromosomes.
