Video: Replication thiab transcription yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev sau ntawv thiab DNA rov ua dua ob qho tib si koom nrog ua cov ntawv luam ntawm DNA hauv ib lub cell. Kev sau ntawv luam DNA rau hauv RNA, thaum rov ua dua ua lwm daim qauv ntawm DNA. Txawm hais tias DNA thiab RNA muaj qee yam tshuaj sib xws, txhua lub molecule ua haujlwm sib txawv hauv cov kab mob muaj sia.
Dhau li ntawm qhov no, lub hom phiaj ntawm kev hloov pauv thiab kev txhais lus yog dab tsi?
Cov rov ua dua DNA yog semi-conservative thiab nyob ntawm complementary base pairing. Kev sau ntawv yog lub synthesis ntawm mRNA theej los ntawm DNA lub hauv paus sequences los ntawm RNA polymerase. Kev txhais lus yog cov synthesis ntawm polypeptides ntawm ribosomes.
Ib yam li ntawd, puas muaj kev hloov pauv tshwm sim tom qab luam tawm? (2) Thaum puas transcription tshwm sim ? Cov lus teb luv luv: Tsis yog. Thaum ib qho RNA polymerase (nyob rau hauv lub nucleus) transcribes DNA mus rau hauv ib tug messenger RNA (mRNA) molecule.
Ib yam li ntawd, ob qhov sib txawv ntawm kev rov ua dua thiab kev hloov pauv yog dab tsi?
Rov ua dua yog tus luam tawm ntawm ob - hlua ntawm DNA. Kev sau ntawv yog tus tsim ntawm ib leeg, zoo ib yam RNA los ntawm ob tug - tso tseg DNA. Ob tug Cov strands raug cais tawm thiab tom qab ntawd txhua txoj hlua ntawm DNA sib txuas ntxiv yog rov tsim dua los ntawm ib qho enzyme hu ua DNA polymerase.
Qhov twg replication thiab transcription tshwm sim?
1 Teb. DNA replication tshwm sim nyob rau hauv lub nucleus. DNA transcription tshwm sim nyob rau hauv lub nucleus. mRNA txhais tshwm sim ntawm ribosomes.
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