Messenger RNA (mRNA) nqa cov ntaub ntawv keeb kwm theej los ntawm DNA hauv daim ntawv ntawm cov lej ntawm peb lub hauv paus "cov lus," txhua yam uas qhia txog cov amino acid tshwj xeeb. 2. Hloov RNA (tRNA) yog tus yuam sij rau deciphering cov lus code hauv mRNA.
mRNA yog dab tsi thiab vim li cas nws tseem ceeb?
mRNA yog tseem ceeb raws li DNA . Messenger ribonucleuc acid, lossis mRNA luv luv, ua lub luag haujlwm tseem ceeb hauv tib neeg biology, tshwj xeeb hauv cov txheej txheem paub. raws li protein synthesis. mRNA yog ib qho molecule ib leeg uas nqa cov kab mob caj ces los ntawm DNA hauv lub xov tooj ntawm tes mus rau ribosomes, lub xov tooj ntawm tes ua cov khoom siv protein.
Lub luag haujlwm tseem ceeb ntawm mRNA yog dab tsi?
Tshwj xeeb, tus xa xov RNA (mRNA) nqa cov qauv ntawm cov protein los ntawm lub cell DNA mus rau nws cov ribosomes, uas yog "tshuab" uas tsav cov protein synthesis. Hloov RNA (tRNA) ces nqa cov amino acids tsim nyog rau hauv ribosome kom suav nrog hauv cov protein tshiab.
mRNA txhais li cas?
Ib hom RNA pom hauv cov hlwb. mRNA molecules nqa cov ntaub ntawv genetic xav tau los ua cov protein. Lawv nqa cov ntaub ntawv los ntawm DNA nyob rau hauv lub nucleus ntawm lub cell mus rau cytoplasm qhov twg cov proteins yog tsim. Kuj hu ua messenger RNA.
DNA thiab mRNA txawv li cas?
DNA yog tsim los ntawm deoxyribose qab zib thaum mRNA yog tsim los ntawm ribose qab zib. DNA muaj thymine ua ib qho ntawm ob pyrimidines thaum mRNANws muaj uracil raws li nws cov pyrimidines puag. DNA yog tam sim no nyob rau hauv lub nucleus thaum mRNA diffuses mus rau hauv lub cytoplasm tom qab synthesis. DNA yog ob-stranded thaum mRNA yog ib leeg-stranded.
