Video: Dab tsi yog template rau transcription?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev sau ntawv siv ib qho ntawm ob qhov nthuav tawm DNA strands ua ib qho tus qauv ; txoj hlua no hu ua tus qauv txoj hlua. Cov khoom RNA yog ntxiv rau cov khoom tus qauv strand thiab yuav luag zoo tib yam rau lwm yam DNA strand, hu ua nontemplate (los yog coding) strand.
Yog li ntawd, tus qauv rau kev txhais lus yog dab tsi?
Kev txhais lus . Kev hloov pauv yog kev sib txuas ntawm RNA los ntawm DNA tus qauv qhov twg cov cai hauv DNA tau hloov mus rau hauv RNA code ntxiv. Kev txhais lus yog qhov kev sib txuas ntawm cov protein los ntawm mRNA tus qauv qhov twg cov cai hauv mRNA hloov mus rau hauv cov amino acid ib ntus hauv cov protein.
Secondly, dab tsi yog qhov kawg khoom ntawm transcription? Cov kawg khoom ntawm transcription yog RNA molecule. Li no, kev luam cov ntaub ntawv ntawm cov noob hauv cov genome rau hauv RNA tshwm sim thaum lub sijhawm kev sau ntawv . Peb hom tseem ceeb ntawm RNA tsim los ntawm kev sau ntawv yog mRNA, tRNA, thiab rRNA.
Yog li ntawd, dab tsi yog qhov txheej txheem ntawm transcription?
Kev sau ntawv yog cov txheej txheem los ntawm qhov uas cov ntaub ntawv nyob rau hauv ib tug strand ntawm DNA yog theej rau hauv ib tug tshiab molecule ntawm messenger RNA (mRNA). DNA muaj kev nyab xeeb thiab ruaj khov khaws cov khoom siv caj ces hauv cov nuclei ntawm cov hlwb raws li kev siv, lossis qauv.
Cov txheej txheem twg yog ib feem ntawm kev sau ntawv?
Kev sau ntawv yog cov txheej txheem uas DNA tau theej ( luam tawm ) mus rau mRNA, uas nqa cov ntaub ntawv xav tau rau kev tsim cov protein. Kev sau ntawv yuav tshwm sim nyob rau hauv ob kauj ruam dav. Ua ntej, ua ntej tus xa xov RNA yog tsim, nrog kev koom tes ntawm RNA polymerase enzymes.
Pom zoo:
Dab tsi yog cov reagents xav tau rau PCR thiab dab tsi yog qhov ua haujlwm ntawm txhua tus?
Muaj tsib yam tshuaj reagents, lossis cov khoom xyaw, siv hauv PCR: qauv DNA, PCR primers, nucleotides, PCR tsis thiab Taq polymerase. Primers feem ntau yog siv nyob rau hauv khub, thiab DNA ntawm ob lub primers yog amplified thaum lub sij hawm PCR cov tshuaj tiv thaiv
Dab tsi yog 4 kauj ruam nyob rau hauv tus txheej txheem ntawm transcription?
Transcription muaj plaub kauj ruam: pib. Lub DNA molecule unwinds thiab sib cais los tsim ib tug me me qhib complex. Elongation. RNA polymerase txav raws tus qauv strand, ua ke ntawm mRNA molecule. Kev txiav txim. Hauv prokaryotes muaj ob txoj hauv kev uas tau txiav tawm. Kev ua haujlwm
Yam dab tsi ua rau qhov pib transcription?
Dab tsi yog qhov ua rau qhov pib transcription complex? Transcription factor proteins thiab RNA polymerase
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Yog vim li cas transcription yog ib kauj ruam tsim nyog nyob rau hauv protein synthesis?
Lub Art ntawm Protein Synthesis Nyob rau hauv eukaryotic hlwb, transcription tshwm sim nyob rau hauv lub nucleus. Thaum lub sijhawm sau ntawv, DNA yog siv los ua tus qauv los ua ib qho molecule of messenger RNA (mRNA). Thaum lub sij hawm kev txhais lus, cov noob caj noob ces hauv mRNA yog nyeem thiab siv los ua cov protein