Yuav ua li cas unwinds DNA nyob rau hauv protein synthesis?
Yuav ua li cas unwinds DNA nyob rau hauv protein synthesis?

Video: Yuav ua li cas unwinds DNA nyob rau hauv protein synthesis?

Video: Yuav ua li cas unwinds DNA nyob rau hauv protein synthesis?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Kev sau ntawv. Transcription yog tus txheej txheem uas DNA yog theej (transcribed) rau mRNA, uas nqa cov ntaub ntawv xav tau rau protein synthesis . Kev hloov pauv yuav tshwm sim hauv ob kauj ruam dav. Ua ntej, ua ntej tus tub txib RNA yog tsim, nrog rau kev koom tes ntawm RNA polymerase enzymes.

Xav txog qhov no, dab tsi unzips DNA hauv protein synthesis?

Lub helicase unzips lub ob-stranded DNA rau replication, ua ib tug forked qauv.

Ib yam li ntawd, dab tsi ua rau DNA hauv kev sau ntawv? Cov kauj ruam ntawm Kev sau ntawv Nws tshwm sim thaum lub enzyme RNA polymerase khi rau thaj tsam ntawm cov noob hu ua tus txhawb nqa. Qhov no signals lub DNA rau tso siab yog li 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 txuas ua ke ntawm cov hauv paus.

Tsis tas li lo lus nug yog, DNA koom nrog hauv kev tsim cov protein li cas?

DNA ua RNA ua Protein . Cov synthesis ntawm cov proteins tshwm sim nyob rau hauv ob theem ua ke: Transcription thiab Translation. Transcription tshwm sim nyob rau hauv lub cell nucleus thiab siv lub hauv paus ib theem zuj zus ntawm DNA tsim mRNA. Lub mRNA nqa cov lus los ua ib qho tshwj xeeb protein ntau tawm mus rau cytoplasm qhov twg kev txhais lus tshwm sim.

Thawj kauj ruam ntawm cov protein synthesis yog dab tsi?

STEP 1: Cov thawj kauj ruam hauv protein synthesis yog kev hloov pauv ntawm mRNA los ntawm DNA gene hauv lub nucleus. Qee lub sij hawm ua ntej, ntau hom RNA tau raug tsim los siv DNA tsim nyog. RNAs tsiv tawm ntawm lub nucleus mus rau hauv cytoplasm.

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