Video: Yuav ua li cas cov nucleic acids sib sau ua ke?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tag nrho RNA thiab DNA synthesis, ob leeg cellular thiab viral, ua rau tib yam tshuaj kev taw qhia : los ntawm 5' (phosphate) kawg mus rau 3' (hydroxyl) kawg (saib daim duab 4-13). Nucleic acid chains yog sib dhos los ntawm 5' triphosphates ntawm ribonucleosides los yog deoxyribonucleosides.
Ntawm no, qhov twg nucleic acid synthesis tshwm sim?
Synthesis ntawm nucleic acids . Nucleotides ua tau muab cais ua purines thiab pyrimidines. Nyob rau hauv ntau complex multicellular tsiaj lawv yog ob qho tib si feem ntau tsim nyob rau hauv lub siab.
Tsis tas li ntawd, txoj kev 5 mus rau 3 yog dab tsi? 2 Teb. Cov 5 ' thiab 3 ' txhais tau tias " tsib prime" thiab " peb prime", uas qhia cov lej carbon nyob rau hauv DNA lub qab zib qaum 5 ' carbon muaj ib pawg phosphate txuas rau nws thiab 3 ' carbon a hydroxyl (-OH) pawg. Qhov no asymmetry muab DNA strand ib " kev taw qhia ".
Kuj paub, nyob rau hauv txoj kev twg DNA replication tshwm sim?
Txhua tus paub DNA replication systems xav tau ib pab dawb 3 'hydroxyl ua ntej synthesis tuaj yeem pib (ceeb toom: lub DNA template yog nyeem hauv 3' txog 5' kev taw qhia whereas ib tug tshiab strand yog synthesized nyob rau hauv lub 5' rau 3' kev taw qhia -Qhov no feem ntau tsis meej pem).
Vim li cas DNA replication tshwm sim nyob rau hauv 5 mus rau 3 kev taw qhia?
DNA replication mus rau hauv 5' rau 3 ' kev taw qhia vim DNA Polymerase ua haujlwm rau ntawm lub cev 3 '-OH ntawm cov hlua uas twb muaj lawm rau kev ntxiv cov nucleotides dawb.
Pom zoo:
Vim li cas nucleic acids tsis nyob rau hauv cov ntawv qhia zaub mov?
Txawm hais tias nucleic acids yog ib qho tseem ceeb macromolecule, lawv tsis nyob rau hauv cov zaub mov pyramid los yog ntawm cov khoom noj khoom haus. Qhov no yog vim lawv nyob rau hauv txhua yam peb noj uas ib zaug nyob thiab noj cov nyob los yog ib zaug muaj sia nyob tsis hloov ib yam ntawm peb genetic ntaub ntawv los yog tej zaum yuav pab tau los yog ua mob rau peb nyob rau hauv ib qho kev tshwm sim
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Vim li cas peb thiaj li kho cov coefficients thaum ntsuas cov tshuaj sib npaug thiab tsis yog cov ntawv sau npe?
Thaum koj hloov cov coefficients, koj tsuas yog hloov tus naj npawb ntawm cov molecules ntawm cov khoom tshwj xeeb. Txawm li cas los xij, thaum koj hloov cov ntawv sau npe, koj tab tom hloov cov tshuaj nws tus kheej, uas yuav ua rau koj qhov sib npaug tshuaj tsis raug
Dab tsi ntawm cov molecules tsim cov nucleic acids?
Nucleic acids yog cov molecules tsim los ntawm nucleotides uas ncaj qha cov haujlwm hauv cellular xws li kev faib cell thiab kev tsim cov protein. Txhua nucleotide yog tsim los ntawm pentose qab zib, nitrogenous puag, thiab phosphate pawg. Muaj ob hom nucleic acids: DNA thiab RNA
Thaum muab piv cov qauv sau rau ib tus neeg raug liam cov ntaub ntawv lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub tshaj kaum ob lub hlis?
Thaum piv cov qauv sau rau tus neeg raug liam? cov ntaub ntawv, lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub ntau tshaj rau rau kaum ob lub hlis. Tus lej txaus ntawm tus qauv yog qhov tseem ceeb rau kev txiav txim siab qhov tshwm sim ntawm kev sib piv