RNA yog dab tsi?
Ribonucleic acid, abbreviated li RNA, Nws yog cov ntaub ntawv keeb kwm ntawm cov kab mob hauv cov hlwb, qee cov kab mob thiab Viroid. RNA yog condensed los ntawm ribonucleotides los ntawm Phosphodiester daim ntawv cog lus los tsim cov saw ntev molecules. Nws yog ib qho tseem ceeb ntawm cov khoom siv roj ntsha uas tuaj yeem siv los khaws thiab xa cov ntaub ntawv caj ces los tswj kev ua haujlwm ntawm tes, thiab tuaj yeem siv los tsim cov protein. Kuj tseem muaj ntau txoj haujlwm, suav nrog kev hloov pauv, kev tsim cov protein, cov tub txib RNA, kev tswj hwm RNA, thiab lwm yam.
Lub ribonucleotide molecule muaj phosphoric acid, ribose, thiab base. Muaj plaub lub hauv paus ntawm RNA, uas yog, A (Adenine), G (Guanine), C (Cytosine), thiab U (Uracil). U (Uracil) hloov T (Thymine) hauv DNA. Lub luag haujlwm tseem ceeb ntawm ribonucleic acid nyob rau hauv lub cev yog coj cov protein synthesis.
Ib lub xovtooj ntawm tib neeg lub cev muaj txog 10pg ntawm ribonucleic acid, thiab muaj ntau hom ribonucleic acids, nrog rau qhov hnyav molecular me me thiab cov ntsiab lus loj hloov, uas tuaj yeem ua lub luag haujlwm ntawm kev sau ntawv. Nws tuaj yeem sau cov ntaub ntawv ntawm DNA mus rau hauv ribonucleic acid ib ntus, txhawm rau tswj cov haujlwm ntawm tes thiab tswj cov protein synthesis zoo dua.
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Kev ua haujlwm ntawm RNA
Vim hais tias ribonucleic acid muaj qhov tseem ceeb rau tib neeg lub cev, thaum pom qhov txawv txav ntawm ribonucleic acid thaum kuaj, nws yuav tsum tau mus rau hauv tsev kho mob rau kev kuaj xyuas raws sij hawm, qhia meej qhov laj thawj, thiab kho raws li kev qhia ntawm kws kho mob. .
Ua ntej, RNA ua lub luag haujlwm txiav txim siab hauv kev txhais cov ntaub ntawv caj ces.
Qhov thib ob, RNA muaj qhov tseem ceeb catalytic muaj nuj nqi thiab lwm yam kev ua haujlwm hauv tsev (kev ua haujlwm hauv tsev yog qhov tseem ceeb ntawm cov kab mob batch (nrog rau cov kab mob), xws li cov qauv RNA ntawm Prokaryote chromosomes, sib dhos RNA ntawm bacteriophages, thiab lwm yam).
Thib peb, RNA transcription processing thiab hloov kho nyob ntawm ntau hom RNAs me me thiab lawv cov protein complexes.
Thib plaub, RNA ua lub luag haujlwm tseem ceeb hauv kev qhia cov noob thiab kev ua haujlwm ntawm tes.
Thib tsib, RNA plays lub luag haujlwm tseem ceeb hauv kev hloov pauv ntawm cov kab mob. Qhov kev tshawb pom ntawm ribozymes qhia tau hais tias RNA yog ob qho tib si cov ntaub ntawv molecule thiab ib qho kev ua haujlwm molecule, thiab RNA tej zaum yuav tshwm sim thawj zaug ntawm lub hauv paus chiv keeb ntawm lub neej.
Peb muaj 15 xyoo ntawm kev lag luam kev lag luam, peb cov khoom ua tau raws li ISO cov qauv, Peb tshwj xeeb hauv RNA hmoov.Yog tias koj txaus siab rau peb cov khoom, thov xa email rau:haozebio2014@gmail.com