Video: Introns thiab exons zoo li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dab tsi yog Introns thiab Exons ? Introns thiab exons yog nucleotide sequences nyob rau hauv ib lub noob. Introns raug tshem tawm los ntawm RNA splicing li RNA matures, txhais tau hais tias lawv tsis qhia nyob rau hauv lub kawg tub txib RNA (mRNA) khoom, thaum exons mus ua kev sib raug zoo rau ib leeg thiaj li tsim mRNA paub tab.
Cov lus nug tseem yog, introns thiab exons txawv li cas?
Exons yog hu ua nucleic acid sequences sawv cev hauv RNA molecule. Introns yog cov nucleotide sequences pom nyob rau hauv cov noob uas raug tshem tawm los ntawm RNA splicing. Hauv lwm lo lus, exons yog coding cheeb tsam, whereas, intros yog thaj chaw tsis-coding.
Ib tug kuj nug, yog introns thiab exons tib qhov loj? Cov exons ntawm cov noob no tsis qhia qhov txawv txav hauv qhov loj thiab tuaj yeem muab faib ua peb qhov loj discrete thiab ob qho me me ntxiv qhov loj pab pawg, hos tus kheej intros sib txawv considerably nyob rau hauv qhov loj hauv thiab nruab nrab ntawm cov noob.
Raws li, introns tuaj yeem yog exons?
Hauv lwm lo lus, Introns yog cov cheeb tsam noncoding ntawm RNA cov ntawv sau, lossis DNA encoding nws, uas raug tshem tawm los ntawm kev sib txuas ua ntej kev txhais lus. Sequences uas tau koom ua ke nyob rau hauv qhov kawg mature RNA tom qab RNA splicing yog exons.
Dab tsi yog exon hauv DNA?
Ib exon ua yog ib feem ntawm cov noob uas yuav encode ib feem ntawm qhov kawg paub tab RNA tsim los ntawm cov noob tom qab intros tau raug tshem tawm los ntawm RNA splicing. Lub sij hawm exon ua hais txog ob qho tib si DNA ib theem zuj zus nyob rau hauv ib lub noob thiab rau qhov sib txuas hauv RNA cov ntawv sau tseg.
Pom zoo:
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