Cov txheej txheem:
- Introns spliced tawm qhov twg?
- Thaum twg thiab qhov twg raug tshem tawm?
- Dab tsi ua rau introns tsim lub voj?
- Dab tsi yog splicing yog vim li cas nws yuav tsum tau?
Video: Thaum twg introns spliced tawm?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Introns yog cov ntawv tsis yog ntawm RNA cov ntawv sau, lossis DNA encoding nws, uas tau sib cais tawm ua ntej RNA molecule raug txhais ua cov protein. Cov seem ntawm DNA (los yog RNA) uas code rau cov proteins hu ua exons.
Introns spliced tawm qhov twg?
Thaum tus txheej txheem ntawm splicing, introns raug tshem tawm los ntawm pre-mRNA los ntawm spliceosome thiab exons yog spliced rov qab ua ke. Yog tias cov introns tsis raug tshem tawm, RNA yuav raug muab txhais ua cov protein tsis ua haujlwm. Splicing tshwm sim nyob rau hauv lub nucleus ua ntej RNA migrate mus rau lub cytoplasm.
Thaum twg thiab qhov twg raug tshem tawm?
Introns raug tshem tawm los ntawm cov ntawv sau thawj zaug los ntawm kev sib cais ntawm kev khaws cia ua ntu zus hu ua splice sites. Cov chaw no muaj nyob ntawm 5′ thiab 3′ kawg ntawm introns Feem ntau, RNA ib ntus uas raug tshem tawm pib nrog dinucleotide GU ntawm nws 5′ kawg, thiab xaus nrog AG ntawm nws. 3′ kawg.
Dab tsi ua rau introns tsim lub voj?
R-loops, Introns thiab DNA puas
Introns yog cov cheeb tsam tsis-coding nyob rau hauv cov noob uas tau sau nrog rau cov cheeb tsam coding ntawm cov noob, tab sis tom qab ntawd raug tshem tawm ntawm thawj RNA cov ntawv sau los ntawm splicing Ua haujlwm ntawm thaj chaw ntawm DNA feem ntau tsim R-loops uas yooj yim rau DNA puas.
Dab tsi yog splicing yog vim li cas nws yuav tsum tau?
Nws yog qhov tsim nyog hauv eukaryotic hlwb vim eukaryotic noob muaj cov cheeb tsam uas tsis yog coding (hu ua introns) nyob nruab nrab ntawm cheeb tsam coding (paub tias exons). Yog li txhawm rau ua kom muaj cov protein ua haujlwm los ntawm mRNA, cov introns yuav tsum raug tshem tawm thiab qhov no yog ua los ntawm kev sib txuas.
Pom zoo:
Thaum twg cov kev tshaj tawm tau tsim tawm?
Kev tshaj tawm niaj hnub pib ua kom zoo nrog qhov tshwm sim ntawm cov ntawv xov xwm thiab cov ntawv xov xwm hauv 16th thiab 17th centuries. Thawj cov ntawv tshaj tawm txhua lub lim tiam tau tshwm sim hauv Venice thaum ntxov xyoo pua 16th . thawj qhov tshaj tawm hauv keeb kwm yog dab tsi?
Thaum twg muaj kev tawm tsam rau kev tawm suab hauv kev txwv tsis pub dhau hauv California?
Hauv San Francisco Superior Tsev Hais Plaub, cov lus tsa suab hauv kev txwv yuav tsum tau xa ntawv "tsawg kawg kaum (10) hnub ua ntej hnub teem rau kev sim siab lossis tus kheej ua haujlwm tsawg kawg tsib (5) hnub ua ntej hnub teem rau kev sim” Kev tawm tsam yuav tsum raug foob tus kheej thiab ua haujlwm tsis pub dhau hnub teem rau kev sim Lub sijhawm kawg ntawm kev thov kev tawm tsam California yog dab tsi?
Los ntawm leej twg tau nthuav tawm qhov kev faib tawm ntawm phonological tawm tsam?
Trubetzkoy tau nthuav tawm nws qhov kev faib tawm ntawm hom phonological tawm tsam hauv 1936 (1936a) . Kev tawm tsam phonological yog dab tsi? A phonological kev tawm tsam yog tau kawg tsim los ntawm cov chav sib txawv (cov yam ntxwv ntsig txog, xov tooj, archiphonemes, tonemes, architonemes) hais txog ntawm tus kheej yam lus .
Thaum twg cov lus hais tawm ntawm homestuck tawm?
Zaj dab neeg dubious authenticity.Kaum xyoo dhau los, ib tug tub hluas sawv hauv nws chav pw. Cov xwm txheej tau teeb tsa rau hnub ntawd yuav hloov pauv nws thiab nws cov phooj ywg lub neej mus ib txhis, rau qhov zoo thiab qhov phem (thiab qhov tsis zoo).
Thaum lub qab nthab joists yuav tsum tau spliced?
Ceiling joists yuav xav tau splicing yog tias lawv tau tawg thaum thauj lossis kev tsim kho Lawv kuj yuav raug spliced yog tias ib daim tau raug txiav tawm ntawm ib lub sijhawm ua ntej kho dua lossis yog tias muaj ntau ntev joist yog xav tau thiab koj yuav tsum tsim nws tawm ntawm ntau tshaj ib daim ntoo.
