Video: Lub luag haujlwm ntawm DNA polymerase hauv DNA replication Brainly yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev piav qhia: DNA polymerase yog ib qho enzyme uas muaj ntau yam DNA polymerases . Cov no koom nrog DNA replication , proofreading thiab kho ntawm DNA . Thaum lub sij hawm tus txheej txheem ntawm rov ua dua , DNA polymerase ntxiv nucleotides rau ntawm RNA primer.
Hais txog qhov no, uas pab tiv thaiv kev ua yuam kev hauv DNA replication?
DNA polymerase proofreading: proofreading los ntawm DNA polymerase kho yuam kev thaum rov ua dua.
Ib tug kuj yuav nug, dab tsi yog qhov ua haujlwm ntawm DNA polymerase hlwb? Lub ntsiab kev ua haujlwm ntawm DNA polymerase yog ua DNA los ntawm nucleotides, lub tsev blocks ntawm DNA . Muaj ob peb hom ntawm DNA polymerase qe luaj a luag hauj lwm hauv DNA replication thiab lawv feem ntau ua haujlwm ua khub los luam ib qho molecule ntawm ob-stranded DNA nyob rau hauv ob lub tshiab ob stranded DNA molecules.
Tsis tas li ntawd, lub luag haujlwm ntawm DNA polymerase hauv DNA replication yog dab tsi?
DNA polymerase . DNA polymerase yog ib qho enzyme uas synthesizes DNA molecules los ntawm deoxyribonucleotides, lub tsev blocks ntawm DNA . Cov enzymes no tseem ceeb rau DNA replication thiab feem ntau ua haujlwm ua khub los tsim ob qho tib si DNA strands los ntawm ib qho qub DNA molecule.
Lub luag haujlwm ntawm enzyme Primase hauv DNA replication Brainly yog dab tsi?
Primase yog cov enzyme uas txuas lub ribosome mus rau lub DNA . D. Primase kaw qhov khoob ntawm Okazaki fragments lossis lwm yam. tawg ntawm DNA.
Pom zoo:
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Dab tsi yog lub luag haujlwm thiab cov haujlwm niaj hnub ntawm tus kws tshuaj ntsuam xyuas DNA?
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Dab tsi yog lub luag haujlwm ntawm DNA ligase hauv DNA replication?
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Cov txheej txheem dab tsi yog lub luag haujlwm rau txoj haujlwm ua haujlwm sib txawv?
Position-effect variegation (PEV) tshwm sim thaum cov noob ib txwm nyob hauv euchromatin yog sib xyaw nrog heterochromatin los ntawm kev hloov kho lossis hloov pauv. Thaum lub ntim ntim heterochromatin kis thoob plaws heterochromatin / euchromatin ciam teb, nws ua rau kev hloov pauv ntawm kev ntsiag to hauv tus qauv stochastic