Video: DNA hloov mus rau mRNA li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws siv DNA ua tus qauv los ua ib qho RNA molecule. RNA ces tawm ntawm lub nucleus thiab mus rau ib tug ribosome nyob rau hauv lub cytoplasm, qhov chaw txhais lus tshwm sim. Nws yog kev hloov ntawm cov lus qhia caj ces hauv DNA rau tus tub txib RNA ( mRNA ). Thaum transcription, ib tug strand ntawm mRNA yog ua uas yog complementary rau ib tug strand ntawm DNA.
Tom qab ntawd, ib tug kuj yuav nug, ua li cas koj nrhiav mRNA los ntawm DNA?
Nyob rau hauv thiaj li yuav txiav txim gene sequence raws li ib mRNA template, koj tsuas tuaj yeem ua qhov thim rov qab. Koj yuav phim DNA nucleotides nrog cov sib xyaw RNA nucleotides. Koj tuaj yeem ua tau txiav txim lub sequence ntawm coding strand ntawm DNA los ntawm tsuas yog hloov RNA U rau hauv DNA T tus.
Ib yam li ntawd, cov strand ntawm DNA twg yog transcribed rau hauv mRNA? Lub stretch ntawm DNA tau sau rau hauv RNA molecule hu ua a kev sau ntawv unit thiab encodes yam tsawg kawg ib gene. Yog hais tias lub gene encodes ib tug protein, lub kev sau ntawv tsim cov tub txib RNA ( mRNA ); tus mRNA , nyob rau hauv lem, ua hauj lwm raws li ib tug template rau cov protein synthesis los ntawm kev txhais lus.
Ua li no, koj yuav sau DNA li cas?
Nws suav nrog kev luam cov gene DNA ib ntus los ua ib qho RNA molecule. Kev hloov pauv yog ua los ntawm cov enzymes hu ua RNA polymerases, uas txuas nucleotides los ua ib qho RNA strand (siv cov DNA strand raws li ib tug template). Transcription muaj peb theem: pib, elongation, thiab termination.
mRNA nyob qhov twg?
mRNA yog pom nyob rau hauv lub nucleus thiab cytoplasm nyob rau hauv lub hlwb.
Pom zoo:
Yuav ua li cas rau lub zog thaum nws hloov ntawm ib daim ntawv mus rau lwm qhov?
Kev hloov pauv hluav taws xob yog thaum lub zog hloov ntawm ib daim ntawv mus rau lwm qhov - zoo li hauv lub tshuab hluav taws xob uas hloov lub zog kinetic ntawm dej rau hauv hluav taws xob. Thaum lub zog tuaj yeem hloov pauv lossis hloov pauv, tag nrho lub zog tsis hloov pauv - qhov no yog hu ua kev txuag hluav taws xob
Yuav ua li cas mRNA hloov mus ua cov protein?
Neeg xa xov liaison RNA (mRNA) yog txhais ua cov protein los ntawm kev sib koom ua ke ntawm kev hloov pauv RNA (tRNA) thiab ribosome, uas yog tsim los ntawm ntau cov proteins thiab ob loj ribosomal RNA (rRNA) molecules
DNA hloov mus rau RNA li cas?
DNA rau RNA Transcription. RNA uas cov ntaub ntawv tau muab luam tawm yog tus xa xov RNA (mRNA). Cov txheej txheem cuam tshuam nrog RNA polymerase yog txhawm rau tshem tawm DNA thiab tsim kom muaj ib txoj hlua ntawm mRNA los ntawm kev tso rau ntawm qhov loj hlob mRNA molecule lub hauv paus ntxiv rau qhov ntawd ntawm tus qauv strand ntawm DNA
Thaum twg cov khoom hloov pauv ncaj qha mus rau cov roj, qhov kev hloov ntawm lub xeev hu ua?
Sublimation yog tus txheej txheem ntawm transformation ncaj qha los ntawm cov khoom theem mus rau lub gaseous theem, tsis dhau los ntawm ib tug nruab nrab kua theem. Tsis tas li ntawd, nyob rau hauv qhov siab ntawm qhov siab ntawm triple point, qhov kub thiab txias yuav ua rau cov khoom hloov pauv mus rau cov roj yam tsis tau dhau los ntawm cov dej hauv cheeb tsam
Lub zog rau kev thauj mus los ntawm qhov twg thiab vim li cas thiaj li xav tau lub zog rau kev thauj mus los?
Kev thauj mus los nquag yog txheej txheem uas yuav tsum tau txav cov molecules tawm tsam qhov concentration gradient. Cov txheej txheem yuav tsum muaj zog. Lub zog rau cov txheej txheem tau txais los ntawm kev rhuav tshem cov piam thaj siv oxygen hauv kev ua pa aerobic. ATP yog tsim thaum ua pa thiab tso tawm lub zog rau kev thauj mus los