Kev sim Meselson thiab Stahl yog ib qho kev sim los ua pov thawj tias DNA replication yog semiconservative semiconservative Semiconservative replication piav txog lub mechanism ntawm DNA replication nyob rau hauv tag nrho cov paub hlwb… Cov txheej txheem no paub raws li ib nrab kev saib xyuas rov ua dua vim tias ob daim ntawv theej ntawm thawj DNA molecule raug tsim, txhua daim ntawv khaws cia (replicating) cov ntaub ntawv los ntawm ib nrab ntawm thawj DNA molecule. https://en.wikipedia.org › wiki › Semiconservative_replication
Semiconservative replication - Wikipedia
thiab nws tau pom thawj zaug hauv Escherichia coli thiab tom qab ntawd hauv cov kab mob siab dua, xws li cov nroj tsuag thiab tib neeg lub hlwb.
Kev sim Meselson Stahl tau qhia dab tsi?
Kev sim Meselson Stahl. Lub centrifuge tau siv los cais DNA molecules sau nrog isotopes ntawm qhov sib txawv. Qhov kev sim no tau nthuav tawm tus qauv uas txhawb nqa cov qauv ntawm cov qauv ntawm DNA replication.
Qhov twg ntawm cov xwm txheej hauv qab no tau sim ua pov thawj los ntawm Hershey thiab Chase?
Semi-conservative DNA replication
Leej twg sim ua pov thawj tias DNA replication yog Semiconservative?
Bacterium. Tswv yim: DNA replication yog semiconservative thiab qhov no yog thawj zaug proven kev sim los ntawm Meselson thiab Stahl ntawm E. coli.
Leej twg hais tias DNA replication yog Semiconservative Nws tau sim ua pov thawj li cas los ntawm Meselson thiab Stahl?
Watson thiab Crick Npaj ib hom kev saib xyuas ntawm kev rov ua dua rau DNA. Xyoo 1985 Meselson thiab Stahl's tau ua pov thawj ntawm kev saib xyuas ib nrab ntawm kev rov ua dua. Lawv ua haujlwm nrog E. coli siv cov isotope hnyav ntawm Nitrogen, N15, E.
