Terminal deoxynucleotidyl transferase (TdT), yog cov qauv-dawb DNA polymerase uas catalyzes kev koom ua ke ntawm deoxynucleotides ntawm 3'-hydroxyl terminus ntawm DNA, nrog rau kev tso tawm ntawm inorganic phosphate. TdT tsis xav tau tus qauv thiab yuav tsis luam ib qho.
Puas yog DNA polymerase xav tau tus qauv?
Ntu 27.2DNA Polymerases Yuav tsum muaj tus qauvthiab primer. … Lawv tsis tuaj yeem pib los ntawm kos los ntawm kev ntxiv nucleotides mus rau ib qho dawb-stranded DNA qauv. RNA polymerase, sib piv, tuaj yeem pib RNA synthesis yam tsis muaj primer (Tshooj 28.1. 4).
Vim li cas RNA polymerase tsis xav tau primer?
Ib primer yuav tsum tau tsim los ntawm ib qho enzyme hu ua primase, uas yog hom RNA polymerase, ua ntej DNA replication tuaj yeem tshwm sim. Lub synthesis ntawm ib tug primer yog tsim nyog vim hais tias cov enzymes uas synthesize DNA, uas yog hu ua DNA polymerases, tuaj yeem xa cov DNA tshiab nucleotides rau cov strand uas twb muaj lawm ntawm nucleotides
Yuav ua li cas polymerase nqa nws tus kheej template?
Telomerase yog qhov rov qab transcriptase, yog ib chav kawm ntawm DNA polymerases, thawj zaug pom nyob rau hauv retroviruses (saib Tshooj 3), uas ua ke DNA los ntawm RNA template. Qhov tseem ceeb, telomerase nqa nws tus kheej qauv RNA, uas yog ntxiv rau telomere rov ua ntu zus, ua ib feem ntawm cov enzyme complex.
Puas yog Polyadenylate polymerase xav tau cov qauv strand rau polyadenylation quizlet?
Puas yog polyadenylate polymerase xav tau RNA template? Yes, tus qauv rau polyadenylation yog TTT … T. Yog, tus qauv rau polyadenylation muaj nyob rau hauv cov qauv DNA strand.
