Video: DNA hloov mus rau RNA li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
DNA rau RNA Transcription . Cov RNA uas cov ntaub ntawv yog transcribed tus tub txib RNA (mRNA). Cov txheej txheem cuam tshuam nrog RNA polymerase yog mus unwind DNA thiab tsim 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.
Tsis tas li ntawd, koj yuav hloov DNA rau RNA li cas?
Nws suav nrog kev luam cov gene DNA sequence ua ib RNA molecule. Kev hloov pauv yog ua los ntawm enzymes hu ua RNA polymerases, uas txuas nucleotides los ua ib qho RNA strand (siv ib DNA strand raws li ib tug template). Transcription muaj peb theem: pib, elongation, thiab termination.
Tom qab ntawd, lo lus nug yog, RNA polymerase yuav ua li cas thiaj paub qhov twg pib hloov cov noob rau hauv mRNA? RNA polymerase pib thaum lub enzyme txuas rau qee yam nucleotide ib ntus hu ua tus txhawb nqa thaum pib ntawm a noob . RNA polymerase khi rau a cov gene txhawb kom pib mRNA synthesis.
Hais txog qhov no, DNA hloov pauv li cas?
kev sau ntawv / DNA transcription . Kev sau ntawv yog tus txheej txheem uas cov ntaub ntawv nyob rau hauv ib tug strand ntawm DNA yog theej rau hauv ib lub molecule tshiab ntawm tus tub txib RNA (mRNA). Cov tshiab tsim mRNA cov ntawv luam ntawm cov noob ces ua daim ntawv qhia txog cov protein synthesis thaum lub sijhawm kev txhais lus.
RNA siv los tsim DNA li cas?
Cov txheej txheem ntawm transcription hloov cov xov tooj ntawm tes cov ntaub ntawv caj ces los ntawm DNA rau RNA . Lub hom phiaj ntawm kev sau ntawv yog los ua ib qho RNA luam ntawm ib tug gene DNA ib ntus. Ces tus RNA polymerase nyeem cov DNA cov base khub ib khub ntawm ib lub sij hawm thiab tsim lub complementary mRNA strand xav tau kev txhais lus.
Pom zoo:
DNA hloov mus rau mRNA li cas?
Nws siv DNA ua tus qauv los ua 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 mus rau tus tub txib RNA (mRNA). Thaum lub sij hawm luam ntawv, ib qho strand ntawm mRNA yog ua kom ntxiv rau ib txoj hlua ntawm DNA
Dab tsi yog txheej txheem ntuj tsim ua rau ib hom pob zeb hloov mus rau lwm hom?
Peb hom pob zeb tseem ceeb yog igneous, metamorphic thiab sedimentary. Peb txheej txheem uas hloov ib lub pob zeb mus rau lwm qhov yog crystallization, metamorphism, thiab yaig thiab sedimentation. Txhua lub pob zeb tuaj yeem hloov mus rau lwm lub pob zeb los ntawm kev dhau los ntawm ib lossis ntau dua ntawm cov txheej txheem no. Qhov no tsim lub voj voog pob zeb
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
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