2: Bidirectional Circular DNA Replication hauv Bacteria DNA replication (xub) tshwm sim nyob rau hauv ob qho tib si cov lus qhia los ntawm keeb kwm ntawm replication nyob rau hauv lub voj DNA nyob rau hauv feem ntau cov kab mob. Tag nrho cov proteins uas koom nrog hauv DNA replication sib sau ua ke ntawm cov khoom siv rov ua dua tshiab los ua ib qho kev sib txuas ua ke hu ua replisome.
DNA yog dab tsi?
Bidirectional replication yog ib txoj kev ntawm DNA replication pom nyob rau hauv kab mob los ntawm txhua lub nceeg vaj tseem ceebBidirectional replication suav nrog replicating DNA nyob rau hauv ob txoj kev nyob rau tib lub sij hawm uas ua rau ib tug ua strand (tau replication tshwm sim sai dua) thiab ib tug lagging strand (nrog qeeb replication).
Puas rov ua dua bidirectional hauv eukaryotes?
Raws li nrog prokaryotes, DNA replication hauv eukaryotic hlwb yog bidirectionalTxawm li cas los xij, tsis zoo li cov DNA ncig hauv cov hlwb prokaryotic uas feem ntau muaj tib lub hauv paus chiv keeb ntawm replication, linear DNA ntawm eukaryotic. cell muaj ntau lub hauv paus chiv keeb ntawm replication (Daim duab 19.5. 11). Daim duab 19.5.
Puas DNA rov ua dua ob txoj kev hauv tib neeg?
DNA replication tshwm sim nyob rau hauv ob qho tib si qhia. Ib qho RNA primer complementary rau niam txiv strand yog synthesized los ntawm RNA primase thiab yog elongated los ntawm DNA polymerase III los ntawm kev ntxiv ntawm nucleotides mus rau 3′-OH kawg.
Puas yog DNA rov ua dua ob txoj hauv kev hauv prokaryotes?
Prokaryotic DNA Replication yog txheej txheem uas tus prokaryote duplicates nws DNA mus rau lwm daim ntawv uas kis mus rau cov ntxhais hlwb. … Replication is bi-directional and originates at a single origin of replication (OriC).
