Tukuruatanga DNA - te wāhanga matua

Replicating DNA - biosynthesis waikawa deoxyribonucleic. Ko te rauemi mō te biosynthesis o DNA he adenosine, a guanozin- tsitidin- timidintrifosfornaya waikawa ATP, GTP, CTP me TTP ranei.

tukuruatanga DNA

kawea biosynthesis i roto i te aroaro o pera-ka karanga "uri" - he rahinga o te whakakōkī waikawa deoxyribonucleic kotahi-paea puta. mahi te whakakōkī rite te polymerase DNA. whai wāhi ana tēnei whākōkī kei roto i te ranunga o ngā toenga nucleotide. I roto i te meneti kotahi, hono neke atu i te 1,000 ngā toenga nucleotide. Ko te toenga nucleotide i roto i te rāpoi ngota o te waikawa deoxyribonucleic kongakonga tuati-3 ', here 5'-phosphodiester. DNA polymerase catalyzes te tua o mononucleotides toenga ki te waikawa mutunga-puta 3-hydroxyl free deoxyribonucleic. synthesized Tuatahi wahi iti o te rāpoi ngota pītauira. tuku moni ratou ratou ki te mahi o te DNA ligase ki te hanga i te whatiwhatinga roa o te waikawa deoxyribonucleic. E paetata rua whatiwhatinga i roto i te karihi pūtau. whakamahia waikawa deoxyribonucleic puta te rite te mata o te tupu o ngā rāpoi ngota DNA heke mai, me te he ano hoki he kopu i roto i nei i hanga te he waikawa deoxyribonucleic taiawhio antiparallel puta nei te ki DNA he ōrite i roto i te hanganga me te whakanohonga o te raupapa nucleotide o toenga. Tukuruatanga o DNA puta i roto i interphase mitotic wehewehenga pūtau. hāngai waikawa deoxyribonucleic te i roto i te pūira me te pūpūira. I muri i te hanganga o te waikawa deoxyribonucleic tahi, i hanga ona hanganga tuarua, me te tuatoru. e toaati E rua ngā whenu o te waikawa deoxyribonucleic e here hauwai o kïnakitanga ture. puta DNA tukuruatanga i roto i te karihi pūtau.

Pikitia rerekē rōpū mo te biosynthesis o nga momo RNA me pūhui pūngao-taonga ko ATP, GTP, CTP ko TTP. waikawa Ribonucleic kia synthesized ai reira ki te whai wāhitanga o tetahi o nga whatiwhatinga toru: te RNA polymerase DNA-ti'aturi, polynucleotide-nucleotidyltransferases me RNA polymerase RNA-ti'aturi. Ko te tuatahi o enei roto e roto i te karihi o ngā pūtau katoa tuwhera ano i roto i te pungaraungao. synthesized RNA i runga i te tauira DNA i roto i te aroaro o triphosphates ribonucleoside, Mangan me katote Konupora. rāpoi ngota RNA hua tautoko ki te tātauira DNA. Ki puta pītauira i roto i te karihi e hanga e p-RNA, t-RNA me RNA-RNA me Priming. Kua kawea te toru tuatahi ki te cytoplasm, te wahi e whai wāhi ratou i roto i te pūmua biosynthesis.

puta tata rite pai pītauira rite translation o waikawa deoxyribonucleic. kawea Tuku rite te pai kia rite ki te tiaki o te mōhiohio ā-ira i roto i te rua kaupae: tuhinga me te translation. He aha te mea he ira? Gene - he wae rauemi, i te mea wahi o te rāpoi ngota o te waikawa deoxyribonucleic (RNA i roto i te tahi mau huaketo). Roto i te ngā pūira o karihi pūtau. tuku mōhiohio iranga te i te DNA mā RNA ki pūmua. kawea tuhi i roto i roto i te karihi pūtau me no ki te ariā o mRNA i runga i ngā wāhanga o ngā rāpoi ngota waikawa deoxyribonucleic. kia mea te reira e te raupapa o nucleotides waikawa deoxyribonucleic "tuhia anōtia" i roto i te raupapa nucleotide o te rāpoi ngota, me te RNA. Kei te piri RNA polymerase ki te wahi DNA hāngai, "he mīsini" tona hanganga helix rua, me te tārua nucleotides waikawa deoxyribonucleic mō te āpiti i te parau tumu o te kïnakitanga. Ka rite ki neke atu i te whenu RNA displacement kongakonga synthesized i te kopu, me te DNA rua-paea muri whākōkī faaho'ihia mai tonu. Ki te tae te polymerase RNA te mutunga, me te neke atu i te tātauira RNA i roto i karyoplasm wahi tārua ka neke ki te cytoplasm, te wahi e te reira wahi i roto i te pūmua biosynthesis.

I roto i te raupapa nucleotide haapurororaa wāhi i roto i te rāpoi ngota, me te RNA whakawhiti ki te raupapa o ngā toenga waikawa amino i roto i te rāpoi ngota pūmua. puta tenei tukanga i roto i te cytoplasm me e ngā RNA me hanga e polysomes.