Dab tsi yog cov haujlwm ntawm DNA polymerase 1/2 thiab 3?
Dab tsi yog cov haujlwm ntawm DNA polymerase 1/2 thiab 3?

Video: Dab tsi yog cov haujlwm ntawm DNA polymerase 1/2 thiab 3?

Video: Dab tsi yog cov haujlwm ntawm DNA polymerase 1/2 thiab 3?
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Point of Difference DNA Polymerase Kuv DNA Polymerase III
Hom strand synthesized Lagging strand Ua ntej thiab lagging strands
Lub luag haujlwm hauv DNA kho Active Tsis muaj lub luag haujlwm
Tshuaj lom neeg muaj nuj nqi hauv cell DNA replication , Ua ntawm Okazaki fragments, maturation Excision kho DNA replication , DNA kho

Hais txog qhov no, dab tsi yog qhov ua haujlwm ntawm DNA polymerase 1/2 thiab 3?

DNA Polymerases Pol kuv thiab Pol III ua li qub DNA replication , nrog Pol III nqa tawm nruam synthesis ntawm tus thawj strand thiab discontinuous synthesis ntawm lub lagging strand, tawm hauv qhov khoob uas tau sau los ntawm Pol Kuv thiab kaw los ntawm ligase. Pol Kuv thiab tej zaum Pol II yog active nyob rau hauv DNA kho.

Tom qab ntawd, lo lus nug yog, dab tsi yog 3 lub luag haujlwm tseem ceeb ntawm DNA polymerase? Muaj nuj nqi : Kev ua haujlwm ntawm DNA polymerase yog replicate, proofread thiab kho DNA . Ob peb DNA polymerases muaj, mas DNA polymerase kuv, or Pol Kuv, thiab DNA polymerase III , los yog Pol III , yog cov lub ntsiab cov uas koom nrog DNA replication.

Tom qab, lo lus nug yog, dab tsi yog 2 lub luag haujlwm ntawm DNA polymerase?

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.

Dab tsi yog qhov txawv ntawm DNA polymerase 1/2 thiab 3?

DNA polymerase 3 yog qhov tseem ceeb rau cov rov ua dua ntawm cov thawj thiab cov lagging strands whereas DNA polymerase 1 yog qhov tseem ceeb rau kev tshem tawm cov RNA primers los ntawm cov khoom tawg thiab hloov nws nrog cov nucleotides xav tau. Cov enzymes no tsis tuaj yeem hloov ib leeg li ob leeg muaj txawv cov haujlwm yuav tsum tau ua.

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