Yam dab tsi ua rau qhov pib transcription?
Yam dab tsi ua rau qhov pib transcription?

Video: Yam dab tsi ua rau qhov pib transcription?

Video: Yam dab tsi ua rau qhov pib transcription?
Video: Ua Tsaug Qhov Taus Hlub Ib Ntu - NujSuaXyooj[ SPX MV ]Nkauj Tawm Tshiab 2022-2023. 2024, Kaum ib hlis
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Yam dab tsi ua rau qhov pib transcription complex? Kev sau ntawv Factor proteins thiab RNA polymerase.

Tib neeg kuj nug, dab tsi ua rau cov ntawv sau?

Nws suav nrog kev luam cov noob DNA ib ntus rau ua ib qho RNA molecule. Kev sau ntawv yog ua los ntawm cov enzymes hu ua RNA polymerases, uas txuas nucleotides los ua ib qho RNA strand (siv DNA strand ua tus qauv). Kev sau ntawv muaj peb theem: pib, elongation, thiab termination.

Tsis tas li ntawd, dab tsi yog thawj kauj ruam thaum pib transcription hauv prokaryotes? Kev pib . Kev sau ntawv pib nrog kev khi ntawm RNA polymerase, ua ke nrog ib lossis ntau dua kev sau ntawv yam, rau ib qho DNA ib ntus hu ua "promoter" los tsim RNA polymerase-promoter "kaw complex".

Kuj tseem paub, dab tsi ua rau qhov pib ua haujlwm?

Xovxwm tshaj tawm. Biology Glossary nrhiav los ntawm EverythingBio.com. Cov complex tsim rau pib ntawm kev txhais lus. Nws muaj 30S ribosomal subunit; mRNA; N-formyl-methionine tRNA; thiab peb pib yam.

Lub luag haujlwm ntawm kev pib ua ntu zus yog dab tsi?

Kev pib yog qhov pib ntawm transcription. Nws tshwm sim thaum lub enzyme RNA polymerase khi rau thaj tsam ntawm cov noob hu ua tus txhawb nqa. Qhov no qhia txog DNA kom tshem tawm kom cov enzyme tuaj yeem "nyeem" cov hauv paus hauv ib qho ntawm DNA strands. Lub enzyme tam sim no tau npaj los ua ib txoj hlua ntawm mRNA nrog kev sib ntxiv ib ntus ntawm bases.

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