Lub 3-dimensional ob helix qauv ntawm DNA, raug elucidated los ntawm James Watson thiab Francis Crick.
Puas yog Rosalind Franklin nrhiav pom ob lub helix?
Hauv xyoo 1962, James Watson, Francis Crick thiab Maurice Wilkins tau txais qhov khoom plig Nobel rau kev tshawb pom ntawm cov qauv ntawm DNA. Qhov tseem ceeb tsis tuaj ntawm lub podium yog Rosalind Franklin, uas nws X-ray duab ntawm DNA tau pab ncaj qha rau kev tshawb pom ntawm ob lub helix.
Leej twg nrhiav tau ob lub helix Rosalind Franklin?
Ntawm King's College London, Rosalind Franklin tau txais cov duab ntawm DNA siv X-ray crystallography, ib lub tswv yim thawj zaug los ntawm Maurice Wilkins. Franklin cov duab tso cai James Watson thiab Francis Crick los tsim lawv cov npe nrov ob-strand, lossis ob-helix, qauv.
Puas yog Watson thiab Crick nyiag los ntawm Rosalind Franklin?
Kev sib deev hauv kev tshawb fawb: Puas yog Watson thiab Crick tiag tiag nyiag Rosalind Franklin cov ntaub ntawv? Yog lawm. Tus qhia meej meej tias lawv siv nws cov ntaub ntawv tsis tau tshaj tawm yam tsis muajnws tso cai lossis nws paub.
Watson thiab Crick ua li cas yuam kev?
Nws yog qhov tseeb tias qhov kev xav tias Watson thiab Crick tau tsim siv lawv cov qauv hlau-thiab-hlau tsis haum rau cov pov thawj muaj nyob hauv DNA. … Watson thiab Crick tus qauv yuam kev tso lub hauv paus rau sab nraud ntawm DNA molecule nrog cov phosphates, khi los ntawm magnesium los yog calcium ions, sab hauv.
