Video: Dab tsi yog exon hauv biology?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib exon ua yog ib feem ntawm ib tug noob uas yuav encode ib feem ntawm qhov kawg mature 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 sib lawv liag hauv ib lub noob thiab mus rau qhov sib thooj hauv RNA cov ntawv sau tseg.
Khaws qhov no hauv kev xav, dab tsi yog exon thiab intron?
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 tau qhia nyob rau hauv lub kawg messenger RNA (mRNA) khoom, thaum exons mus ua kev sib raug zoo rau ib leeg thiaj li tsim mRNA paub tab.
Ib tug kuj yuav nug, dab tsi yog ib qho intro hauv biology? Txhais. npe, plural: intros . (molecular biology ) Ib qho noncoding, intervening sequence ntawm DNA nyob rau hauv ib tug noob uas yog transcribed rau hauv mRNA tab sis raug tshem tawm los ntawm cov thawj gene transcript thiab sai degraded thaum maturation ntawm cov khoom RNA. Ntxiv. Ib intro yog nucleotide ib theem zuj zus hauv ib lub noob.
Ib yam li ntawd, koj tuaj yeem nug, qhov haujlwm ntawm Exon yog dab tsi?
Ib exon ua yog ib cheeb tsam coding ntawm cov noob uas muaj cov ntaub ntawv xav tau los encode cov protein. Hauv eukaryotes, cov noob yog tsim los ntawm coding exons interspersed nrog tsis-coding introns. Cov introns no raug tshem tawm los ua tus xa xov xwm ua haujlwm RNA (mRNA) uas tuaj yeem txhais ua cov protein.
Puas yog exon ib codon?
Luv teb: Ib exon ua yog ib feem ntawm cov noob caj noob ces (los ntawm DNA) ua ntej RNA tau raug hloov pauv tom qab hloov pauv (cf. intron). A codon yog peb qhov sib law liag RNA nucleobases nyob rau hauv ib qho kev nyeem ntawv.
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