2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Messenger RNA (mRNA), molecule hauv cov hlwb uas nqa cov lej los ntawm DNA hauv lub nucleus mus rau qhov chaw ntawm cov protein synthesis hauv cytoplasm (cov ribosomes).
hom RNA twg tuaj yeem taug kev hauv cytoplasm?
Messenger RNA (mRNA) yog ib leeg-stranded RNA molecule uas yog ntxiv rau ib qho ntawm DNA strands ntawm cov noob. Lub mRNA yog RNA version ntawm cov noob uas tawm hauv lub cell nucleus thiab txav mus rau cytoplasm qhov twg cov proteins tsim.
RNA txav los ntawm nucleus mus rau cytoplasm li cas?
Kev thauj ntawm RNA molecules los ntawm lub nucleus mus rau cytoplasm yog qhov tseem ceeb rau gene expression. Qhov sib txawv RNA hom uas tsim nyob rau hauv lub nucleus yog exported los ntawm lub nuclear pore complexes ntawm mobile export receptors.
RNA twg pib hauv lub nucleus thiab tawm mus rau cytoplasm?
hom RNA uas muaj cov ntaub ntawv ua cov protein hu ua messenger RNA (mRNA) vim nws nqa cov ntaub ntawv, lossis xov, los ntawm DNA tawm ntawm lub hauv paus. mus rau hauv lub cytoplasm.
hom kev thauj yog RNA?
Transfer ribonucleic acid (tRNA) yog hom RNA molecule uas pab txiav txim siab tus xa xov RNA (mRNA) ua ntu zus rau hauv cov protein. tRNAs ua haujlwm ntawm cov chaw tshwj xeeb hauv ribosome thaum lub sijhawm txhais lus, uas yog txheej txheem uas tsim cov protein los ntawm mRNA.molecule.
Pom zoo:
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Dab tsi yog ib feem ntawm cov kua dej ntawm cytoplasm?
Cytoplasm, cov khoom semifluid ntawm ib lub xovtooj ntawm sab nraud rau cov ntaub so ntswg nuclear thiab sab hauv mus raucellular membrane, qee zaum piav raws li cov ntsiab lus nonnuclear ntawm protoplasm. Hauv eukaryotes (piv txwv li, cov hlwb muaj cov nucleus), cytoplasm muaj tag nrho cov organelles.
Lub zog hloov pauv ntawm tiam mus rau kev xa mus rau kev faib tawm li cas?
Power, tshwj xeeb tshaj yog qib voltage, xa los ntawm cov kab xa tawm raug txo, lossis "tso nqis," los ntawm kev hloov pauv thiab xa mus los ntawm cov kab xa tawm, uas txuas nrog tom tsev thiab kev lag luam. … Nws yog ceg kawg ntawm kev xa hluav taws xob los ntawm ib tiam mus rau cov neeg siv khoom.
Nyob rau toj siab ntawm India los ntawm sab qab teb mus rau sab qaum teb?
Raws li cov ntaub ntawv qhia txog toj siab Indian, qhov kev txiav txim ntawm toj siab ntawm Is Nrias teb los ntawm sab qab teb mus rau sab qaum teb yog Karnataka- Maharashtra-Bundelkhand. 3 toj siab hauv Is Nrias teb yog dab tsi? 'Lub Chotanagpur Plateau', 'Lub Deccan Plateau' thiab 'Meghalaya Plateau' yog peb lub toj siab hauv Is Nrias teb.
Nyob rau hauv nucleoplasm lub cev pom zoo ntawm cov duab kheej kheej?
Nucleolus yog ib qho liab qab, puag ncig lossis tsis sib xws me ntsis uas txuas rau chromatin ntawm thaj chaw tshwj xeeb hu ua nucleolar organizer cheeb tsam. Puas yog lub cev kheej kheej nyob hauv nucleoplasm? Ib lub cev me me uas txuas nrog cov chromosome tshwj xeeb (nucleolar chromosome) hauv nucleoplasm yog nucleolus.
