Video: Dab tsi enzyme kaw cov DNA tshiab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum kawg, ib qho enzyme hu ua DNA ligase ? muab cov DNA sib lawv liag rau hauv ob qhov txuas txuas ntxiv. Qhov tshwm sim ntawm DNA replication yog ob DNA molecules uas muaj ib tug tshiab thiab ib tug qub saw ntawm nucleotides.
Hais txog qhov no, lub enzyme twg yog lub luag haujlwm rau DNA synthesis tshiab?
DNA Polymerase - Cov enzyme lub luag haujlwm rau catalyzing ntxiv ntawm nucleotide substrates rau DNA ob lub sijhawm thiab tom qab DNA replication . Primas - Lub enzyme lub luag haujlwm rau pib synthesis ntawm RNA primers ntawm lub lagging strand thaum lub sij hawm DNA replication.
Tsis tas li ntawd, dab tsi 3 enzymes koom nrog hauv DNA replication? Enzymes koom nrog hauv DNA replication yog:
- Helicase (Unwinds DNA ob helix)
- Gyrase (relieves lub buildup ntawm torque thaum unwinding)
- Primase (ntev RNA primers)
- DNA polymerase III (lub ntsiab DNA synthesis enzyme)
- DNA polymerase I (hloov RNA primers nrog DNA)
- Ligase (ua rau hauv qhov khoob)
Tom qab ntawd, lo lus nug yog, lub enzyme twg yog lub luag haujlwm rau unzipping DNA ob helix?
DNA helicase
Dab tsi enzyme koom nrog Okazaki tawg?
DNA ligase I
Pom zoo:
Dab tsi yog cov txheej txheem uas tsim cov ntawv luam tshiab ntawm cov kab mob caj ces?
Cov txheej txheem ntawm DNA replication tsim ib daim qauv tshiab ntawm cov kab mob cov ntaub ntawv caj ces kom dhau mus rau lub cell tshiab. Dawb ntab nucleotides yog txuam nrog lawv cov lus qhuas los ntawm ib qho enzyme hu ua polymerase. Cov no yog 'lub tsev.' Lawv sib sau ua ke DNA tshiab strand nrog txhua tus qub strands
Yuav ua li cas yog kaw kaw nyob rau hauv lub system txoj kev xav?
Ib daim ntawv xyoo 1993, General Systems Theory los ntawm David S. Walonick, Ph. D., hais hauv ib feem, 'Lub kaw lus kaw yog ib qho uas muaj kev cuam tshuam tshwm sim ntawm cov kab ke thiab tsis yog nrog ib puag ncig. Lub kaw lus qhib yog ib qho uas tau txais cov tswv yim los ntawm ib puag ncig thiab / lossis tso tawm cov khoom tawm mus rau ib puag ncig
Puas muaj cov kaw lus kaw?
Lub kaw lus kaw tsis muaj nyob hauv qhov xwm txheej Hauv qhov kev txiav txim siab nruj ntawm 'kaw' systems, lawv muaj nyob tsuas yog thaum lawv yog cov txheej txheem tsim, vim tias txhua qhov 'qhov system tiag' lossis 'systems hauv xwm' qhib
Dab tsi yog qhov txawv ntawm qhov kaw kaw thiab qhib qhov system hauv chemistry?
Ib puag ncig yog txhua yam tsis nyob hauv qhov system, uas txhais tau tias tag nrho ntawm lub ntiaj teb. Qhov no yog hu ua qhib qhov system. Yog tias tsuas muaj kev sib pauv cua sov tshwm sim ntawm qhov system thiab nws qhov chaw nyob ib puag ncig nws yog hu ua kaw kaw. Tsis muaj teeb meem tuaj yeem nkag lossis tawm hauv qhov kaw
Dab tsi yog peb IOA cov txheej txheem siv thaum cov ntaub ntawv tau txais los ntawm kev kaw lub sijhawm?
Peb cov txheej txheem feem ntau siv los xam IOA rau cov ntaub ntawv ntu ntu yog ntu ntu ntawm IOA, tau qhab nia nruab nrab IOA, thiab tsis tau qhab nia ncua IOA