Video: Dab tsi yog qhov ua haujlwm ntawm enzyme topoisomerase hauv DNA replication quizlet?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
cais cov strands los ntawm kev paub txog keeb kwm, rhuav tshem hydrogen bonds, thiab ua a rov ua dua npuas. Dab tsi yog qhov Lub hom phiaj ntawm topoisomerase ? unwinds lub resulting supercoils.
Xav txog qhov no, dab tsi yog qhov ua haujlwm ntawm enzyme topoisomerase hauv DNA replication?
Topoisomerases yog cov enzymes uas koom nyob rau hauv lub overwinding los yog underwinding ntawm DNA . Qhov teeb meem winding ntawm DNA tshwm sim vim qhov intertwined xwm ntawm nws ob-helical qauv. Thaum DNA replication thiab transcription, DNA ua overwound ua ntej ntawm ib rov ua dua diav rawg.
Tsis tas li ntawd, kev ua haujlwm ntawm enzyme DNA polymerase quizlet yog dab tsi? Ob txoj hlua sib cais thiab tom qab ntawd txhua txoj hlua txuas ntxiv DNA ib ntus yog recreated los ntawm ib enzyme hu ua DNA polymerase . Qhov no enzyme ua kom cov hlua txuas ntxiv los ntawm kev nrhiav qhov tseeb los ntawm kev sib koom ua ke ntawm lub hauv paus, thiab khi nws mus rau qhov qub strand.
Raws li txoj cai, qhov ua haujlwm ntawm topoisomerase quizlet yog dab tsi?
Topoisomerase lov covalent bonds nyob rau hauv lub nraub qaum ntawm ob niam txiv strands. Topoisomerase rhuav tshem covalent daim ntawv cog lus nyob rau hauv lub caj qaum ntawm ib tug niam txiv strand. ( Topoisomerase relieves mob tshwm sim los ntawm unwinding DNA los ntawm helicase. Ua ntej, nws khi rau niam txiv DNA ua ntej ntawm kev rov ua dua tshiab.
Lub luag haujlwm ntawm DNA gyrase quizlet yog dab tsi?
DNA gyrase (tseem hu ua topoisomerase) txo cov supercoiling (so tensions) uas tsim thaum lub sij hawm DNA unwinding, tiv thaiv DNA kev tawg.
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
Los ntawm phosphorylation, Cdks teeb liab lub xov tooj ntawm tes uas nws tau npaj kom dhau mus rau theem tom ntej ntawm lub voj voog ntawm tes. Raws li lawv lub npe qhia, Cyclin-Dependent Protein Kinases yog nyob ntawm cyclins, lwm chav kawm ntawm kev tswj hwm cov protein. Cyclins khi rau Cdks, ua kom cov Cdks rau phosphorylate lwm cov molecules
Lub luag haujlwm ntawm DNA polymerase hauv DNA replication Brainly yog dab tsi?
Kev piav qhia: DNA polymerase yog ib qho enzyme uas muaj ntau yam DNA polymerases. Cov no koom nrog hauv DNA replication, proofreading thiab kho DNA. Thaum lub sij hawm tus txheej txheem ntawm replication, DNA polymerase ntxiv nucleotides ntawm RNA primer
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Dab tsi yog lub luag haujlwm ntawm DNA ligase hauv DNA replication?
DNA ligase yog ib qho enzyme uas kho irregularities los yog tawg nyob rau hauv lub caj qaum ntawm ob-stranded DNA molecules. Nws muaj peb lub luag haujlwm dav dav: Nws ntsaws ruaj ruaj hauv DNA, nws kaw cov khoom sib txuas ua ke, thiab nws txuas Okazaki fragments (cov DNA me me tau tsim thaum lub sij hawm rov ua dua ntawm ob-kab DNA)
Dab tsi yog qhov ua haujlwm ntawm enzyme topoisomerase hauv DNA replication?
Topoisomerases yog cov enzymes uas koom nrog hauv kev dhau los lossis kev cuam tshuam ntawm DNA. Qhov teeb meem winding ntawm DNA tshwm sim vim qhov cuam tshuam ntawm nws cov qauv ob-helical. Thaum DNA replication thiab transcription, DNA yuav dhau mus ua ntej ntawm ib tug replication diav rawg