Cov molecules tshiab ntawm DNA synthesized li cas?
Cov molecules tshiab ntawm DNA synthesized li cas?

Video: Cov molecules tshiab ntawm DNA synthesized li cas?

Video: Cov molecules tshiab ntawm DNA synthesized li cas?
Video: Hmoob Teb Chaws tawm tsam communist agents & cov neeg rhuav haiv 8/ 6 /2023 (1) 2024, Kaum ib hlis
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Hauv eukaryotic cell, DNA yog ua ke ua ntej kev faib cell los ntawm cov txheej txheem hu ua replication. Qhov no molecule nqa cov nucleotides ntxiv rau txhua qhov DNA strands. Cov nucleotides txuas rau daim ntawv DNA tshiab strands, uas yog cov ntawv luam ntawm thawj strand hu ua ntxhais strands.

Raws li, DNA synthesized li cas?

DNA biosynthesis tshwm sim thaum lub cell faib, nyob rau hauv tus txheej txheem hu ua replication. Nws suav nrog kev sib cais ntawm cov DNA ob helix thiab tom qab ntawd synthesis ntawm complementary DNA strand, siv tus niam txiv DNA saw hlau raws li tus qauv. DNA kho mechanisms kho qhov yuam kev thaum lub sij hawm tus txheej txheem ntawm DNA synthesis.

Kuj Paub, DNA nyeem thiab sib txuas li cas? DNA yog nyeem los ntawm DNA polymerase nyob rau hauv lub 3' mus rau 5' kev taw qhia, lub ntsiab lus ntawm nascent strand yog ua ke nyob rau hauv lub 5' rau 3' kev taw qhia.

Raws li txoj cai, cov molecules tshiab ntawm DNA synthesized nyob rau hauv cov hlwb quizlet li cas?

Ob txoj hlua ntawm niam txiv DNA sib cais thaum lub sij hawm DNA rov ua dua. Lub lagging strand yog ua los ntawm ib tug series ntawm tej daim uas yuav tsum tau koom ua ke ua ib tug nruam strand. DNA polymerase ua ib tshiab strand los ntawm kev ntxiv DNA nucleotides ib zaug.

Qhov twg hauv cell yog DNA synthesized?

DNA replication tshwm sim nyob rau hauv lub cytoplasm ntawm prokaryotes thiab nyob rau hauv lub nucleus ntawm eukaryotes. Txawm nyob qhov twg DNA replication tshwm sim, cov txheej txheem hauv paus yog tib yam.

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