Messenger RNA (mRNA) is a subtype of RNA. Ib qho mRNA molecule nqa ib feem ntawm DNA code mus rau lwm qhov ntawm lub cell rau kev ua haujlwm. mRNA yog tsim thaum lub sij hawm transcription. Thaum lub sij hawm transcription txheej txheem, ib strand ntawm DNA yog txiav txim los ntawm RNA polymerase, thiab mRNA yog synthesized.
Qhov txawv ntawm RNA thiab mRNA yog dab tsi?
Ib hom RNA hu ua mRNA, uas sawv cev rau "tus xa xov RNA." mRNA yog RNA uas nyeem los ntawm ribosomes los tsim cov proteins. Thaum txhua hom RNA koom nrog hauv kev tsim cov protein, mRNA yog ib qho uas ua tau raws li tus xa xov. … Lub mRNA yog tsim nyob rau hauv lub nucleus thiab xa mus rau lub ribosome, zoo li tag nrho cov RNA.
Is all RNA mRNA?
mRNA tso nyiaj rau tsuas yog 5% ntawm tag nrho RNA hauv cell. mRNA yog qhov feem ntau heterogeneous ntawm 3 hom RNA nyob rau hauv cov nqe lus ntawm ob qho tib si puag thiab loj.
RNA hloov mus ua mRNA li cas?
mRNA yog tsim thaum lub sijhawm hloov pauv, qhov twg enzyme (RNA polymerase) hloov cov noob rau hauv thawj cov ntawv sau mRNA (tseem hu ua pre-mRNA). … Mature mRNA ces nyeem los ntawm ribosome, thiab, siv cov amino acids nqa los ntawm kev hloov RNA (tRNA), lub ribosome tsim cov protein.
Is mRNA ua ntej RNA?
Cov ntsiab lus tseem ceeb: Thaum RNA cov ntawv sau ua thawj zaug hauv eukaryotic cell, nws suav tias yog pre-mRNA thiab yuav tsum tau ua tiav rau hauv tus xa xov RNA (mRNA). A 5 'cap yog ntxiv rau qhov pib ntawm RNA cov ntawv sau tseg, thiabib tug 3 'poly-A tail yog ntxiv rau qhov kawg.
