Video: Koj txhais mRNA ua protein li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tag nrho cov txheej txheem hu ua noob kev qhia. Hauv txhais lus , tub txib RNA ( mRNA ) yog decoded hauv ribosome decoding chaw rau tsim ib cov amino acid chains, los yog polypeptide . Cov polypeptide tom qab folds rau hauv ib active protein ntau thiab ua nws txoj haujlwm hauv cell.
Tsis tas li ntawd, lub luag haujlwm ntawm mRNA thaum lub sijhawm txhais lus yog dab tsi?
Messenger RNA ( mRNA ) nqa cov ntaub ntawv genetic luam los ntawm DNA nyob rau hauv daim ntawv ntawm ib tug series ntawm peb-base code "cov lus," txhua yam uas qhia txog ib tug tshwj xeeb amino acid. Hloov RNA (tRNA) yog tus yuam sij rau kev txiav txim siab cov lus code hauv mRNA.
Dab tsi yog qhov khoom ntawm kev txhais lus? Cov molecule uas tshwm sim los ntawm txhais lus yog protein - los yog ntau precisely, txhais lus ua kom luv luv ntawm cov amino acids hu ua peptides uas tau stitched ua ke thiab ua cov proteins. Thaum txhais lus , me me cov chaw tsim khoom protein hu ua ribosomes nyeem cov tub txib RNA sequences.
Yog li ntawd, dab tsi ntawm mRNA nucleotide muaj cov ntaub ntawv los ua cov protein?
Ob leeg RNA thiab DNA yog ua los ntawm ib tug chains nucleotide bases, tab sis lawv muaj qee yam tshuaj lom neeg sib txawv. Hom RNA ntawd muaj cov ntaub ntawv rau ua ib qho protein hu ua messenger RNA ( mRNA ) vim nws nqa lub cov ntaub ntawv , los yog lus, los ntawm DNA tawm ntawm lub nucleus mus rau cytoplasm.
Yuav ua li cas rau mRNA tom qab kev txhais lus?
Tom qab tus mRNA yog txhais (nws nyob ntawm seb nws yuav tsum muaj pes tsawg zaus txhais ), nws yuav degraded nyob rau hauv lub cell, vim nws ntseeg hais tias qhov degradation tshwm sim vim txhua yam sib txawv mRNA muaj lub neej ntev, tom qab lub sij hawm no nws yuav (tiav) thiab ces degraded.
Pom zoo:
Koj txhais qhov hnyav txhais li cas?
Cov ntsiab lus. Weighted Mean: Ib qho txhais tau tias qee qhov txiaj ntsig pab ntau dua li lwm tus. Thaum qhov hnyav ntxiv rau 1: tsuas yog muab txhua qhov hnyav los ntawm tus nqi sib xws thiab suav tag nrho. Txwv tsis pub, muab txhua qhov hnyav w los ntawm nws qhov sib piv tus nqi x, suav tias tag nrho, thiab faib los ntawm qhov sib npaug ntawm qhov hnyav: Qhov Ntsuas Ntsuas = ΣwxΣw
Vim li cas nws tseem ceeb kom paub tias koj txhais li cas ntxiv?
Txhais qhov seem. Kev txhais cov lus tseem ceeb yog qhov tseem ceeb thaum koj faib ua lej vim tias koj tuaj yeem tau txais qhov teeb meem tsis raug yog tias koj tsis txhais cov seem kom raug. Piv txwv li, nyob rau hauv ib lo lus teeb meem koj yuav tsum tau faib thiab faib tawm rau koj nrog ib tug seem thiab koj yuav tsum tau muab sau tseg
Yuav ua li cas koj pom tus qauv sib txawv thiab txhais li cas ntawm Excel?
Standard deviation yog ib qho kev ntsuas ntawm ntau npaum li cas variance muaj nyob rau hauv ib pawg ntawm cov zauv piv rau theaverage (txhais tau tias) ntawm cov zauv. Txhawm rau xam qhov sib txawv ntawm Excel, koj tuaj yeem siv ib qho ntawm ob txoj haujlwm tseem ceeb, nyob ntawm cov ntaub ntawv teev. Yog tias cov ntaub ntawv sawv cev rau tag nrho cov pejxeem, koj tuaj yeem siv STDEV. Pfunction
Yuav ua li cas rau cov protein tom qab kev txhais lus?
Protein Folding Tom qab tau muab txhais los ntawm mRNA, tag nrho cov proteins pib tawm ntawm ib tug ribosome raws li ib tug linear sequence ntawm amino acids. Muaj ntau cov proteins folds spontaneously, tab sis qee cov proteins xav tau cov molecules pab, hu ua chaperones, tiv thaiv lawv los ntawm kev sib sau ua ke thaum lub sij hawm nyuaj ntawm folding
Koj txhais li cas los ntawm lo lus txhais?
Lub ntsiab lus txhais yog ib nqe lus ntawm lub ntsiab lus ntawm ib lo lus (ib lo lus, kab lus, lossis lwm yam cim). Cov lus txhais tau muab faib ua ob pawg loj, cov ntsiab lus tsis txaus ntseeg (uas sim muab lub ntsiab lus ntawm lub ntsiab lus) thiab cov ntsiab lus txuas ntxiv (uas sim sau cov khoom uas ib lo lus piav qhia)