Dab tsi yog ob sab ntawm DNA tuav ua ke?
Dab tsi yog ob sab ntawm DNA tuav ua ke?

Video: Dab tsi yog ob sab ntawm DNA tuav ua ke?

Video: Dab tsi yog ob sab ntawm DNA tuav ua ke?
Video: Zaj Dub - Kuv Tsi Muaj Hmoo Tau Los Yog Tus Ntawn Koj Ib Sab (Nkauj Tawm tshiab 2022) 2024, Kaum ib hlis
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Cov nitrogenous bases ntawm lub ob strands ntawm DNA ua ke, purine nrog pyrimidine (A nrog T, G nrog C), thiab yog tuav ua ke los ntawm qaug zog hydrogen bonds. Watson thiab Crick pom qhov ntawd DNA muaj ob sab , los yog strands, thiab hais tias cov strands tau twisted ua ke zoo li ib tug twisted ntaiv - ob helix.

Xav txog qhov no, dab tsi tuav cov hauv paus ua ke hauv DNA?

Nucleotides hauv a puag khub yog complementary uas txhais tau hais tias lawv cov duab tso cai rau lawv sib raug zoo ua ke nrog hydrogen bonds. Lub hydrogen bonding ntawm complementary bases tuav ob txoj hlua ntawm DNA ua ke . Hydrogen bonds tsis yog chemical bonds. Lawv tuaj yeem cuam tshuam tau yooj yim.

dab tsi tuav ob sab ntawm DNA ntaiv ua ke quizlet? Ob txoj hlua ntawm DNA tuav ua ke nrog hydrogen bonds ntawm nitrogen hauv paus. Cov no yog cov tsis muaj zog bonds ntawm polar molecules.

Kuj Paub, yuav ua li cas ntxiv strands ntawm DNA tuav ua ke?

Txhua molecule ntawm DNA yog ob lub helix tsim los ntawm ob complementary strands ntawm nucleotides tuav ua ke los ntawm hydrogen bonds ntawm G-C thiab A-T puag khub. Cov ntaub ntawv genetic khaws cia rau hauv lub cev DNA muaj cov lus qhia rau tag nrho cov proteins uas lub cev yuav puas synthesize.

Dab tsi yog cov lus ntawm DNA rau ribosomes?

Neeg xa xov liaison RNA (mRNA), molecule hauv hlwb uas nqa codes los ntawm DNA nyob rau hauv lub nucleus mus rau qhov chaw ntawm protein synthesis nyob rau hauv lub cytoplasm (the cov ribosomes ).

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