Cov txheej txheem:
Video: Dab tsi yog txoj hlua ntawm dna uas tau sau npe hu ua?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
DNA yog ob-stranded, tab sis tsuas yog ib qho strand ua tus qauv rau kev sau npe ntawm txhua lub sijhawm. Cov template strand no yog hu ua the noncoding strand Cov nontemplate strand yog hu ua coding strand vim nws cov kab ke yuav zoo ib yam li cov tshiab RNA molecule.
DNA hu ua dab tsi?
Kev txhais lus yog tus txheej txheem uas cov ntaub ntawv nyob rau hauv ib txoj hlua ntawm DNA tau theej rau hauv lub molecule tshiab ntawm messenger RNA (mRNA). DNA muaj kev nyab xeeb thiab ruaj khov khaws cov khoom siv caj ces hauv cov nuclei ntawm cov hlwb raws li kev siv, lossis qauv.
Pob ob kab DNA puas tau sau ntawv?
Tsis zoo li DNA replication, nyob rau hauv uas ob strands yog theej, tsuas yog ib txoj hlua yog transcribed. Cov strand uas muaj cov noob yog hu ua qhov kev nkag siab strand, thaum lub strand complementary yog antisense strand.
DNA hu ua dab tsi?
Nyob rau hauv ob qho tib si, kev rov ua dua tau tshwm sim sai heev vim tias ntau yam polymerases tuaj yeem ua rau ob txoj hlua tshiab tib lub sijhawm los ntawm kev siv txhua qhov tsis muaj kab mob los ntawm thawj DNA ob lub helix ua tus qauv. Ib tug ntawm cov thawj strands yog hu ua tus thawj strand, where the other is called the lagging strand.
mRNA Strand yog dab tsi?
Kev txhais lus yog thawj feem ntawm lub hauv paus dogma ntawm molecular biology: DNA → RNA. Nws yog kev hloov ntawm cov lus qhia caj ces hauv DNA mus rau tus tub txib RNA (mRNA). Thaum lub sijhawm sau ntawv, ib txoj hlua ntawm mRNA tau ua kom yog ntxiv rau ib txoj hlua ntawm DNA.
Pom zoo:
Lub npe ntawm cov neeg Muslim uas tau kov yeej Yeluxalees yog dab tsi?
Saladin yog lub npe sab hnub poob ntawm Salah al-Din Yusuf ibn Ayyub, Muslim sultan ntawm Egypt thiab Syria uas nto moo yeej ib pab tub rog loj ntawm Crusaders hauv kev sib ntaus sib tua ntawm Hattin thiab txeeb lub nroog Yeluxalees xyoo 1187.
Pob nyiaj puas daws txoj hlua txoj hlua?
Sheldon tseem tsis tau hnov qab qhov xav tsis thoob thiab yooj yim ntawm txoj hlua txoj kev xav. Nws pib piav qhia rau Penny uas sim nkag siab nws. Sheldon thiab Penny daws txoj hlua txoj hlua . Penny daws cov lus sib cav li cas? Thaum lawv tshawb nrhiav hauv qab pob zeb, Penny muaj Sheldon qhia nws tias nws daws qhov teeb meem li cas.
Puas sheldon puas tau daws txoj hlua txoj hlua?
Penny mam li ua kom nws xav txog qhov ua rau nws zoo siab txog qhov tsaus ntuj. Penny piav txog nws yog ib qho kev tshawb fawb rov qab uas nws mus tom qab ua rau nws tus kheej tseem zoo nkauj. … Sheldon thiab Penny daws txoj hlua txoj hlua .
Vim li cas cov hlua khi hlua khi hlua khi?
Lub kaus mom yog qhov tseem ceeb uas yuav tsum ua kom txoj siv "nrhiav" ruaj khov, tiv thaiv txoj siv ntawm "taug kev" ntawm ntug ntawm rub. Pulleyed Pulley tshem tawm qhov xav tau ntawm lub rubey flanges thiab siv cov lus qhia cov menyuam .
Puas muaj leej twg daws txoj hlua txoj hlua?
Txij li xyoo 1960, cov kws tshawb fawb tau ua rau cov kev xav tsis thoob txoj hlua, lub hauv paus ntsiab lus ntawm kev muaj tiag uas suav nrog cov khoom me me, wriggling ib-dimensional-hu ua hlua-uas ua cov ntaub ntawm txhua yam. … Thaum cov kws tshawb fawb ntseeg tias nws ua haujlwm, tab sis tsis muaj leej twg tuaj yeem ua pov thawj nws Hu txoj hlua txoj hlua tau raug pov thawj?
