Visualizing Transcription DNA yog ob-stranded, tab sis tsuas yog ib qho strand ua tus qauv rau kev hloov pauv txhua lub sijhawm. Cov template strand no hu ua noncoding strand.
Puas yog ob kab DNA tuaj yeem sau tau?
Tsis zoo li DNA replication, nyob rau hauv uas ob strands yog theej, tsuas yog ib tug strand yog transcribed. Cov strand uas muaj cov noob yog hu ua qhov kev nkag siab strand, thaum lub strand complementary yog antisense strand.
Vim li cas ob kab DNA tsis koom nrog kev sau npe?
(i) Ob txoj kab DNA tsis tau theej thaum lub sijhawm sau ntawv. … Ib ntu ntawm DNA yuav yog coding rau ob hom proteins, thiab qhov no yuav ua rau cov ntaub ntawv hloov pauv hloov tshuab ua rau nyuaj. Thib ob, ob lub RNA molecules yog tsim ib txhij yuav ua tiav rau ib leeg.
Puas tau sau ntawv tuaj yeem tshwm sim ntawm ob txoj hlua?
Daim duab 10-4. (a) DNA-RNA hybridization qhia tau hais tias txhua tus RNA cov ntaub ntawv sau tseg yog ntxiv rau tsuas yog ib txoj hlua ntawm niam txiv DNA. Hauv qhov piv txwv no, txhua tus ntawm ob DNA strands tau sau tseg, tab sis kev sau ntawv yog asymmetrical-tsuas yog ib txoj hlua yog sau (ntxiv …)
DNA transcription tshwm sim nyob qhov twg?
Nyob hauv eukaryotes, kev txhais lus thiab kev txhais lus muaj nyob rau hauv cov cellular compartments: transcription tshwm sim nyob rau hauv lub membrane-bounded nucleus, whereas translation tshwm sim nyob rau hauv lub nucleus.cytoplasm. Hauv prokaryotes, ob txheej txheem yog sib txuas ua ke (Daim duab 28.15).
