Video: Nuclear matrix yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv biology, lub nuclear matrix yog lub network ntawm fibers pom thoob plaws hauv lub cell nucleus thiab yog me ntsis piv rau lub cell cytoskeleton.
Hais txog qhov no, dab tsi yog lub matrix ntawm lub nucleus?
Lub nuclear matrix yog ib qho peb-dimensional filamentous protein network, pom nyob rau hauv nucleoplasm, uas muab cov qauv txheej txheem rau kev teeb tsa chromatin, thaum txhawb kev hloov pauv thiab rov ua dua.
Tsis tas li ntawd, matrix hauv chromosome yog dab tsi? Txhua chromosome yog bounded los ntawm ib daim nyias nyias hu ua pellicle. Nws yog nyias thiab yog tsim los ntawm achromatic tshuaj. Cov membrane no encloses ib yam khoom zoo li jelly uas feem ntau hu ua matrix . Hauv matrix yog tam sim no chromonemata. Cov matrix kuj yog tsim los ntawm achromatic los yog nongenic khoom.
Ib yam li ntawd, tib neeg nug, dab tsi yog nuclear lamina nuclear matrix?
Cov nuclear lamina yog ib qhov ntom ntom (~ 30 mus rau 100 nm tuab) fibrillar network hauv cov nucleus ntawm cov hlwb feem ntau. Nws yog tsim los ntawm intermediate filaments thiab membrane txuam nrog cov proteins. Cov nuclear lamina zoo ib yam nyob rau hauv cov qauv rau lub nuclear matrix , tab sis qhov kawg txuas mus thoob plaws lub nucleoplasm.
Dab tsi yog nucleolus hauv kev tshawb fawb?
Cov nucleolus yog ib lub cev puag ncig nyob rau hauv lub nucleus ntawm eukaryotic cell. Nws tsis yog ib puag ncig los ntawm daim nyias nyias, tab sis zaum hauv lub nucleus. Cov nucleolus ua ribosomal subunits los ntawm cov proteins thiab ribosomal RNA, tseem hu ua rRNA.
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