Video: Yuav ua li cas mRNA tawm nucleus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piav: Neeg xa xov liaison RNA, los yog mRNA , nplooj tus nucleus los ntawm cov pores nyob rau hauv lub nuclear membrane. Cov pores no tswj kev nkag ntawm cov molecules ntawm cov nucleus thiab cytoplasm. mRNA Kev ua haujlwm tsuas yog tshwm sim hauv eukaryotes.
Kuj nug, ua li cas mRNA tawm ntawm lub nucleus quizlet?
Cov mRNA tawm ntawm nucleus los ntawm cov pores nuclear, mus rau hauv cytoplasm rau kev txhais lus. Hloov mRNA mus rau hauv cov proteins thiab tshwm sim nyob rau hauv lub cytoplasm, nrog kev pab los ntawm ribosomes ntawm ntxhib Endoplasmic reticulum thiab dawb nyob rau hauv lub cytoplasm.
Ib yam li ntawd, puas yog mRNA hauv lub nucleus? mRNA yog "tus tub txib" RNA. mRNA yog synthesized nyob rau hauv lub nucleus siv cov nucleotide ua ntu zus ntawm DNA ua tus qauv. mRNA tsim nyob rau hauv lub nucleus yog thauj tawm ntawm nucleus Thiab nyob rau hauv lub cytoplasm qhov twg nws txuas mus rau lub ribosomes.
Hauv qhov no, thaum mRNA tawm ntawm lub nucleus nws mus qhov twg?
Transcription yuav siv sij hawm qhov chaw nyob rau hauv lub nucleus . Nws siv DNA ua tus qauv los ua RNA molecule. RNA tiam tawm lub nucleus thiab mus mus rau ib tug ribosome nyob rau hauv lub cytoplasm, qhov twg translation tshwm sim. Kev txhais lus nyeem cov noob caj noob ces hauv mRNA thiab ua ib protein.
Vim li cas mRNA tuaj yeem tawm hauv cov nucleus thiab DNA tsis tuaj yeem?
DNA , uas muaj peb cov noob caj noob ces, nyob rau hauv lub nucleus ntawm cov kab mob eukaryotic. DNA tsis tuaj yeem tawm hauv lub nucleus , thiab yog li xa cov lus qhia mus rau tus so ntawm tes nws yuav tsum tau replicated, tsim mRNA , qho tuaj yeem tawm ntawm lub nucleus.
Pom zoo:
Yuav ua li cas mRNA thauj tawm ntawm lub nucleus?
Tom qab mRNA yog synthesized los ntawm DNA thaum lub sij hawm transcription, lub tshiab molecule txav los ntawm lub nucleus mus rau lub cytoplasm, dhau los ntawm lub nuclear membrane los ntawm ib tug nuclear pore. Ribosomes yog qhov chaw ntawm kev txhais lus, lossis kev siv cov ntaub ntawv hauv mRNA los tsim cov protein sib xws
Yuav ua li cas prokaryotic hlwb muaj nyob rau hauv qhov chaw ntawm ib tug nucleus?
Prokaryotic Cell Prokaryotes yog cov kab mob unicellular uas tsis muaj organelles los yog lwm yam hauv cov txheej txheem hauv daim nyias nyias. Yog li ntawd, lawv tsis muaj lub nucleus, tab sis, feem ntau, feem ntau muaj ib qho chromosome: ib daim ntawm cov voj voog, ob-stranded DNA nyob rau hauv ib cheeb tsam ntawm lub cell hu ua nucleoid
Yuav ua li cas Mendeleev paub qhov twg yuav tawm qhov khoob rau cov ntsiab lus tsis pom?
Mendeleev tshuav qhov khoob hauv nws lub rooj rau qhov chaw tsis paub thaum lub sijhawm. Los ntawm saib cov khoom siv tshuaj thiab lub cev lub cev ntawm cov khoom nyob ib sab ntawm agap, nws kuj tuaj yeem kwv yees cov khoom ntawm cov ntsiab lus tsis tau tshawb pom. Lub caij germanium tau tshawb pom tom qab
Yuav ua li cas rho tawm rho tawm haujlwm?
Rho dependent termination yog ib qho ntawm ob hom kev txiav tawm hauv prokaryotic transcription, lwm qhov yog intrinsic (los yog Rho-independent). Tom qab khi rau cov saw tshiab RNA, ρ qhov tseem ceeb txav mus raws cov molecule hauv 5'-3' kev taw qhia thiab txhawb kev sib cais los ntawm DNA qauv thiab RNA polymerase
Yuav ua li cas koj pom qhov nruab nrab tshaj tawm ntawm qhov tshaj tawm vs lub sijhawm teeb?
Qhov chaw nyob hauv qab qhov nrawm / lub sijhawm nkhaus yog tag nrho cov kev hloov pauv. Yog tias koj faib qhov ntawd los ntawm kev hloov pauv hauv lub sijhawm, koj yuav tau txais qhov nruab nrab tshaj tawm. Velocity yog vector daim ntawv ntawm kev ceev. Yog tias qhov nrawm ib txwm tsis yog qhov tsis zoo, ces qhov nruab nrab tshaj tawm thiab qhov nruab nrab ceev yog tib yam