Video: MRNA puas tuaj yeem txhais ntau dua ib zaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
mRNA ua rov siv dua ntau tshaj ib zaug ( Ntau tshaj ib ribos ua tau ua txhais ib mRNA (qhov tshwm sim: ntau yam polypeptide chains) 10. Kev hloov pauv yog qhov kawg ntawm kev hloov pauv caj ces.
Ib sab ntawm no, ib qho mRNA puas tuaj yeem txhais ntau zaus?
Ntau cov ribosomes txhais tau ib ib mRNA molecule ntawm tib yam sij hawm , tab sis tag nrho cov ribosomes no yuav tsum pib ntawm thawj codon thiab txav mus raws lub mRNA strand ib codon ntawm a sij hawm mus txog rau qhov nres codon.
mRNA puas tuaj yeem rov siv tau? mRNA , tRNA, thiab ribosomes ua tau ua rov siv dua tshaj thiab tshaj. Tib yam protein ua tau rov ua dua yog tias xav tau, lossis ib daim tshiab mRNA ua muab txhais.
Tom qab ntawd, yuav ua li cas rau mRNA tom qab kev txhais lus?
Tom qab tus mRNA yog txhais (nws nyob ntawm seb nws yuav tsum muaj pes tsawg zaus txhais ), nws yuav degraded nyob rau hauv lub cell, vim nws ntseeg hais tias qhov degradation tshwm sim vim txhua yam sib txawv mRNA muaj lub neej ntev, tom qab lub sij hawm no nws yuav (tiav) thiab ces degraded.
Puas yog mRNA degraded tom qab kev txhais lus?
Messenger RNA ( mRNA ) mediates hloov cov ntaub ntawv ntawm caj ces los ntawm lub cell nucleus mus rau ribosomes nyob rau hauv lub cytoplasm, qhov uas nws ua hauj lwm raws li ib tug template rau protein synthesis. Ib zaug mRNAs nkag mus rau cytoplasm, lawv yog txhais , khaws cia rau yav tom ntej txhais lus , los yog degraded . Tag nrho mRNAs yog kawg degraded ntawm tus nqi txhais.
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