rnk i dnk

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prezentatsiya powerpoint https://infourok.ru/prezentaciya-k-uroku-biologii-klass-stroenie-i-funkcii-rnk-617010.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html malie rnk reguliruyut rabotu genov v yadre i sintez belka v tsitoplazme analogichna funktsii dnk-svyazivayushix belkov rnk sochetayut svoystva: dnk – printsip komplementarnosti, pozvolyayushiy matrichnoe kopirovanie molekuli. belkov – trexmernuyu strukturu, pozvolyayushuyu vipolnyat samie raznie funktsii (kataliz, regulyatsiyu, transport) https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://www.yaklass.ru/p/biologia/obschie-biologicheskie-zakonomernosti/biokhimicheskie-protcessy-v-kletke-16037/khranenie-i-peredacha-geneticheskoi-informatcii-dnk-i-rnk-geneticheskii-k_-17333/re-cd40912e-8f50-4b10-807d-666b85f88ff1 replikatsiya dnk http://reproacheddarcv.blogspot.com/2013/02/blog-post_7331.html https://www.google.ru/search?newwindow=1&biw=1920&bih=938&tbm=isch&sa=1&ei=ctrsw8dqdoa4sqgc6opgdq&q=%d1%82%d1%80%d0%b0%d0%bd%d1%81%d0%bb%d1%8f%d1%86%d0%b8%d1%8f+%d0%b4%d0%bd%d0%ba&oq=%d0%a2%d1%80%d0%b0%d0%bd%d1%81%d0%bb%d1%8f%d1%86%d0%b8%d1%8f&gs_l=img.1.0.0i67k1j0l9.243652.248093.0.251744.12.11.0.1.1.0.88.688.10.10.0....0...1c.1.64.img..1.11.696.0..0i10i1k1j35i39k1.0.eg8x_i6zh48#imgrc=q4q4yqeipgdfym: transkriptsiya https://infourok.ru/konspekt-k-uroku-po-biologii-na-temu-biosintez-belka-1559021.html translyatsiya translyatsiya – protsess sinteza polipeptidnoy tsepi, osushestvlyaemiy na ribosome. protsess translyatsii proxodit v tri etapa: 1) initsiatsiya – sintezirovannaya v protsesse transkriptsii irnk vixodit iz yadra i napravlyaetsya v tsitoplazmu k mestu sinteza belka – k ribosome. na ee 5i kontse imeetsya initsiiruyushiy kodon (aug), kotoriy obespechivaet soedinenie irnk i dvux sub'edinits ribosomi, t. e. obrazuetsya funktsionalniy tsentr ribosomi (ftsr

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). prejde chem ribosoma nachnet sintez polipeptidnoy tsepi, k ney doljna prisoedinitsya osobaya molekula trnk s opredelennoy aminokislotoy ( amk) – initsiatornaya trnk. s nee i nachinaetsya sintez belka. po printsipu komplementarnosti initsiatornaya trnk svoim antikodonom soedinyaetsya s pervim kodonom na irnk i vxodit v ribosomu. etot kodon na irnk nazivaetsya start-kodonom. obrazuetsya kompleks: ribosoma – irnk - initsiatornaya trnk - aminokislota. 2) elongatsiya – protsess rosta polipeptidnoy tsepi. pervaya trnk s aminokislotoy peredvigaetsya iz aktseptornogo tsentra v donorniy tsentr, a vtoraya trnk s amk prisoedinaetsya k irnk v aktseptornom tsentre. aminokisloti sblijayutsya drug s drugom, mejdu nimi voznikaet peptidnaya svyaz, i obrazuetsya dipeptid. pri etom pervaya trnk osvobojdaetsya i, pokidaya ribosomu, tyanet za soboy irnk, kotoraya prodvigaetsya rovno na odin triplet. vtoraya trnk s dipeptidom peremeshaetsya v donorniy tsentr, a v ribosomu vxodit tretya trnk s amk. ves protsess povtoryaetsya vnov i vnov: irnk, posledovatelno prodvigayas cherez ribosomu, kajdiy …

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sintez_belka_transkripciya_i_translyaciya_dnk_i_rnk.html https://cf.ppt-online.org/files2/slide/0/0yaj6xv8tcndegwzpwukbhirksvfj9mpycerix/slide-1.jpg nazvanie strukturi funktsii strukturnie geni dayut informatsiyu o posledovatelnosti amk v polipeptidax i nukleotidov v razlichnix vidax rnk funktsionalnie geni reguliruyut rabotu strukturnix genov a) geni-operatori pozvolyayut ili ne pozvolyayut schitivat informatsiyu so strukturnix genov b) geni-regulyatori dayut informatsiyu o sinteze belka-repressora, sposobnogo blokirovat gen-operator (schitivanie informatsii s operona ne idet) v) promotor mesto pervichnogo prikrepleniya fermenta rnk-polimerazi – fermenta, kataliziruyushego reaktsii dnk-zavisimogo sinteza irnk g) initsiator posledovatelnost nukleotidov dnk, s kotoroy nachinaetsya transkriptsiya (sintez irnk) d) terminator opredelennaya posledovatelnost nukleotidov, otsoedinyayushaya rnk-polimerazu ot dnk (prekrashayushaya schitivanie informatsii) operon—edinitsa schitivaniya informatsii u prokariot, eto gruppa strukturnix genov, upravlyaemaya odnim genom-operatorom. v sostav operona vxodyat strukturnie geni i funktsionalnie – promotor, initsiator, operator, terminator. na rasstoyanii ot operona raspolagaetsya gen-regulyator. https://megaobuchalka.ru/5/46443.html sintez belka u eukariot https://meduniver.com/medical/physiology/etapi_sinteza_belka.html http://yamedik.org/?p=2&c=biologiya/bio_ru_mar u eukariot ne ustanovleno operonnoy organizatsii genov, tak kak geni, opredelyayushie sintez fermentov odnoy tsepi bioximicheskix reaktsiy, mogut bit rasseyani v genome …

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rnix belkov, i ix deystvie mojet xarakterizovatsya pleyotropnim effektom. v regulyatsii ekspressii eukarioticheskix genov vajnuyu rol igrayut geni - enxanseri (usilivayut transkriptsiyu) i saylenseri (tormozyat transkriptsiyu). v regulyatsii transkriptsii uchastvuyut gormoni, a gennoy aktivnosti - gistoni xromosom. http://yamedik.org/?p=2&c=biologiya/bio_ru_mar image1.png image2.png image3.png image4.png image5.png image6.png image7.png image8.png image9.png image10.png image11.png image12.png image13.png image14.png image15.png image16.png image17.png image18.png image19.png /docprops/thumbnail.jpeg

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prezentatsiya powerpoint https://infourok.ru/prezentaciya-k-uroku-biologii-klass-stroenie-i-funkcii-rnk-617010.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://bigslide.ru/biologiya/36323-dnk-i-rnk.html malie rnk reguliruyut rabotu genov v yadre i sintez belka v tsitoplazme analogichna funktsii dnk-svyazivayushix belkov rnk sochetayut svoystva: dnk – printsip komplementarnosti, pozvolyayushiy matrichnoe kopirovanie molekuli. belkov – trexmernuyu strukturu, pozvolyayushuyu vipolnyat samie raznie funktsii (kataliz, regulyatsiyu, transport) https://bigslide.ru/biologiya/36323-dnk-i-rnk.html https://www.yaklass.ru/p/biologia/obschie-biologicheskie-zakonomernosti/biokhimicheskie-...

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