2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev txhais lus pib thaum RNA polymerase khi rau qhov kev txhawb nqa ib ntus ze rau qhov pib ntawm cov noob (ncaj qha lossis los ntawm cov proteins pab). RNA polymerase siv ib qho ntawm cov DNA strands (cov qauv qauv strand template strand Los ntawm lub rooj sib tham, coding strand yog cov strand siv thaum tso saib DNA ib ntus.), thiab lwm yam yog noncoding strand (tseem hu ua antisense strand, anticoding strand, template strand lossis transcribed strand). https://en.wikipedia.org › wiki › Coding_strand
Coding strand - Wikipedia
) ua tus qauv los ua ib qho tshiab, ntxiv RNA molecule. Kev txhais lus xaus rau hauv tus txheej txheem hu ua kev txiav tawm.
RNA polymerase ua dab tsi thaum lub sijhawm sau ntawv?
Raws li cov molecule complex muaj li ntawm cov protein subunits, RNA polymerase tswj cov txheej txheem ntawm transcription, thaum lub sij hawm uas cov ntaub ntawv khaws cia nyob rau hauv ib tug molecule ntawm DNA yog theej rau hauv ib tug tshiab molecule ntawm tub txib RNA..
Yuav ua li cas thaum lub sijhawm hloov pauv?
Kev txhais lus yog txheej txheem uas cov ntaub ntawv hauv ib txoj hlua DNA tau theej rau hauv ib lub qauv tshiab ntawm tus tub txib 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.
Dab tsi yog tsim thaum lub sijhawm hloov RNA polymerase?
Lub ntsiab enzyme koom nrog hauv kev sau ntawv yog RNA polymerase, uas siv cov qauv DNA ib leeg los ua ke ib qho sib ntxiv ntawm RNA. Tshwj xeeb, RNA polymerase tsim RNA strand nyob rau hauv 5 'mus rau 3' kev taw qhia, ntxiv txhua nucleotide tshiab rau 3' kawg ntawm txoj hlua.
4 kauj ruam hauv kev sau ntawv yog dab tsi?
Key Takeaways: Cov kauj ruam ntawm kev sau npe
Kev txhais lus yog lub npe muab rau cov txheej txheem uas DNA tau theej los ua kom muaj kev sib txuas ntawm RNA. RNA tom qab ntawd nkag mus rau kev txhais lus los ua cov protein. Cov kauj ruam tseem ceeb ntawm kev sau ntawv yog pib, txhawb kev tshem tawm, elongation, thiab txiav tawm.
Pom zoo:
Cov neeg sau ntawv sau npe nrhiav dab tsi ntawm cov ntawv sau se?
Cov neeg sau ntawv feem ntau yuav tsum tau thov cov ntawv sau se rov qab los ntawm IRS kom paub meej tias tus neeg siv nyiaj tshuav nyiaj li cas rau IRS thiab seb qhov kev npaj them nqi puas nyob hauv. … “Yog tias muaj txoj kev npaj them nqi, feem ntau peb yuav tsum tau txheeb xyuas yam tsawg kawg peb lub hlis ntawm qhov tau txais,” nws hais ntxiv.
Lub sijhawm kuv lub sijhawm dawb lossis thaum kuv lub sijhawm dawb?
yog li, qhov no txhais tau tias "thaum kuv lub sijhawm dawb" tsis siv ntauthiab koj muab "hauv kuv lub sijhawm dawb" ntau dua nyob rau qhov kawg ntawm kab lus. Piv txwv li: Kuv tau taug kev tus dev thaum kuv lub sijhawm dawb.
Lub sijhawm nyob qhov twg ntawm lub sijhawm teem sijhawm?
kab kab rov tav ntawm lub rooj ntu ntu yog hu ua ntu ntu. Lub sijhawm nyob rau ntawm lub sijhawm nyob qhov twg? Ib lub sijhawm yog kab kab rov tav ntawm lub rooj ntu ntu. Muaj xya lub sij hawm nyob rau hauv lub sij hawm ntawm lub sij hawm, nrog txhua tus pib ntawm sab laug.
Puas yog rna polymerase muaj cov haujlwm ua pov thawj thaum lub sijhawm sau ntawv?
RNAP tsis tsuas yog pib RNA transcription, nws tseem coj cov nucleotides mus rau hauv txoj hauj lwm, txhawb kev txuas thiab elongation, muaj cov ntaub ntawv pov thawj hauv nruab nrab thiab hloov peev xwm, thiab kev paub txog kev txiav tawm. Hauv eukaryotes, RNAP tuaj yeem tsim cov saw hlau ntev li 2.
By rna-dependent rna polymerase?
RNA-dependent RNA polymerase (RdRp) lossis RNA replicase yog an enzyme uas catalyzes replication ntawm RNA los ntawm RNA template. Tshwj xeeb, nws catalyzes synthesis ntawm RNA strand complementary rau ib tug muab RNA template. Dab tsi yog qhov ua haujlwm ntawm RNA dependent RNA polymerase?
