Ob tus kws tshawb fawb tau tsim cov qauv ntawm DNA teb li cas?
Ob tus kws tshawb fawb tau tsim cov qauv ntawm DNA teb li cas?

Video: Ob tus kws tshawb fawb tau tsim cov qauv ntawm DNA teb li cas?

Video: Ob tus kws tshawb fawb tau tsim cov qauv ntawm DNA teb li cas?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Teb thiab piav qhia:

James Watson thiab Francis Crick tau txais txiaj ntsig los ntawm kev tsim cov qauv ntawm DNA hauv xyoo 1953

Ntxiv mus, ob tus kws tshawb fawb tau tsim cov qauv ntawm DNA Brainly?

Raws li Rosalind Franklin's X-ray crystallography cov txiaj ntsig thiab lwm yam kev tshawb fawb yav dhau los, James Watson thiab Francis Crick ua tus qauv tseeb ntawm cov qauv ntawm DNA.

Ib sab saum toj no, leej twg nrhiav tau ob lub helix qauv ntawm DNA? James Watson

Yog li ntawd, leej twg tsim cov qauv ntawm DNA?

Qhov Discovery ntawm DNA's Structure. Coj hauv xyoo 1952, daim duab no yog thawj daim duab X-ray ntawm DNA, uas coj mus rau kev tshawb pom ntawm nws cov qauv molecular los ntawm Watson thiab Crick . Tsim los ntawm Rosalind Franklin siv cov txheej txheem hu ua X-ray crystallography, nws nthuav tawm cov duab helical ntawm DNA molecule.

Dab tsi yog sab ntawm DNA ntaiv ua los ntawm?

Cov sab ntawm ntaiv yog ua los ntawm alternating qab zib thiab phosphate molecules. Cov piam thaj yog deoxyribose. 2 sided kauv Lub rungs ntawm lub ntaiv yog khub ntawm 4 hom nitrogen hauv paus.

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