DNA hloov mus rau RNA li cas?
DNA hloov mus rau RNA li cas?

Video: DNA hloov mus rau RNA li cas?

Video: DNA hloov mus rau RNA li cas?
Video: Cia kev hlub ntw mus rau lwm tus nkaujntseeg 2024, Kaum ib hlis
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DNA rau RNA Transcription . Cov RNA uas cov ntaub ntawv yog transcribed tus tub txib RNA (mRNA). Cov txheej txheem cuam tshuam nrog RNA polymerase yog mus unwind DNA thiab tsim ib txoj hlua ntawm mRNA los ntawm kev tso rau ntawm qhov loj hlob mRNA molecule lub hauv paus ntxiv rau qhov ntawd ntawm tus qauv strand ntawm DNA.

Tsis tas li ntawd, koj yuav hloov DNA rau RNA li cas?

Nws suav nrog kev luam cov gene DNA sequence ua ib RNA molecule. Kev hloov pauv yog ua los ntawm enzymes hu ua RNA polymerases, uas txuas nucleotides los ua ib qho RNA strand (siv ib DNA strand raws li ib tug template). Transcription muaj peb theem: pib, elongation, thiab termination.

Tom qab ntawd, lo lus nug yog, RNA polymerase yuav ua li cas thiaj paub qhov twg pib hloov cov noob rau hauv mRNA? RNA polymerase pib thaum lub enzyme txuas rau qee yam nucleotide ib ntus hu ua tus txhawb nqa thaum pib ntawm a noob . RNA polymerase khi rau a cov gene txhawb kom pib mRNA synthesis.

Hais txog qhov no, DNA hloov pauv li cas?

kev sau ntawv / DNA transcription . Kev sau ntawv yog tus txheej txheem uas cov ntaub ntawv nyob rau hauv ib tug strand ntawm DNA yog theej rau hauv ib lub molecule tshiab ntawm tus tub txib RNA (mRNA). Cov tshiab tsim mRNA cov ntawv luam ntawm cov noob ces ua daim ntawv qhia txog cov protein synthesis thaum lub sijhawm kev txhais lus.

RNA siv los tsim DNA li cas?

Cov txheej txheem ntawm transcription hloov cov xov tooj ntawm tes cov ntaub ntawv caj ces los ntawm DNA rau RNA . Lub hom phiaj ntawm kev sau ntawv yog los ua ib qho RNA luam ntawm ib tug gene DNA ib ntus. Ces tus RNA polymerase nyeem cov DNA cov base khub ib khub ntawm ib lub sij hawm thiab tsim lub complementary mRNA strand xav tau kev txhais lus.

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