Thaum ob lub helix yog denatured los ntawm kev siv cua sov tag nrho cov nucleotides tsis tuaj yeem nyob rau tib lub sijhawm. Yog vim li cas tom qab qhov no yog tias ob txoj hlua DNA tau tuav ua ke los ntawm hydrogen bonds uas tshwm sim ntawm cov khub hauv paus.
Nucleotides puas tuaj yeem tsim tau?
Nucleic acid denaturation tshwm sim thaum hydrogen bonding ntawm nucleotides is cuam tshuam, thiab ua rau kev sib cais ntawm yav dhau los annealed strands.
Koj puas tuaj yeem pom DNA?
DNA tuaj yeem yog denatured los ntawm tshav kub hauv cov txheej txheem uas zoo ib yam li melting. Thaum tshav kub kub yog thov kom txog thaum DNA tau unwound nws tus kheej thiab sib cais ua ob txoj hlua. … Hom denaturation no kuj tseem siv tau rau hauv cov tshuaj tiv thaiv kab mob polymerase.
Yuav ua li cas thaum nucleotides txuas ua ke?
Nucleotides txuas ua ke los ntawm kev tsim ntawm a phosphodiester daim ntawv cog lusuas yog tsim los ntawm 3 '-OH pawg ntawm ib lub suab thaj molecule, thiab 5' phosphate pawg nyob ib sab. qab zib molecule. Qhov no ua rau poob ntawm cov dej molecule, ua qhov no condensation cov tshuaj tiv thaiv, kuj hu ua lub cev qhuav dej synthesis.
DNA ua dab tsi?
Thaum cov tshuaj DNA tau ua kom sov txaus, cov DNA muab ob npaug tso tawm thiab cov hydrogen bonds uas tuav ob txoj hlua ua ke tsis muaj zog thiab thaum kawg tawg. Cov txheej txheem ntawm kev rhuav tshem ob-stranded DNA rau hauv ib leegyog hu ua DNA denaturation, los yog DNA denaturing.
