Video: Franklin thiab Wilkins ua dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Franklin paub zoo tshaj plaws rau nws txoj haujlwm ntawm X-ray diffraction dluab ntawm DNA, tshwj xeeb tshaj yog Photo 51, thaum nyob rau ntawm King's College London, uas coj mus rau kev tshawb pom ntawm DNA ob helix rau James Watson, Francis Crick thiab Maurice. Wilkins tau qhia txog Nobel nqi zog hauv Physiology lossis Tshuaj hauv xyoo 1962.
Ua raws li qhov kev pom no, Franklin thiab Wilkins tau pab txhawb rau kev tshawb pom DNA li cas?
Nto moo Vajntxwv cov neeg Wilkins pib siv optical spectroscopy los kawm DNA nyob rau hauv lub lig 1940s. Xyoo 1950 nws thiab Gosling tau txais thawj qhov pom tseeb crystalline X-ray diffraction qauv ntawm DNA fibers. Alec Stokes qhia tias cov qauv qhia tias DNA yog helical hauv cov qauv.
Wilkins tham nrog Crick txog dab tsi? James Watson thiab Francis Crick Nws muaj ua hauj lwm nyob rau hauv Salvador E. Ntawm lub rooj sib tham nyob rau lub caij nplooj ntoos hlav xyoo 1951 ntawm lub Zoological chaw nres tsheb ntawm Naples, Watson hnov Wilkins tham ntawm cov qauv molecular ntawm DNA thiab pom nws cov duab X-ray crystallographic tsis ntev los no ntawm DNA. Nws yog nuv.
Ua raws li qhov kev pom no, Franklin thiab Wilkins tau tsim lawv txoj haujlwm li cas?
James Watson thiab Francis Crick ua haujlwm tawm tus qauv ntawm DNA hauv 1953. Los ntawm kev siv cov ntaub ntawv los ntawm lwm cov kws tshawb fawb (Rosalind Franklin thiab Maurice Wilkins ) lawv muaj peev xwm tsim ib tug qauv ntawm DNA. Cov X-ray crystallography cov ntaub ntawv lawv siv tau pom tias DNA muaj ob txoj hlua coiled rau hauv ob lub helix.
Wilkins ua dab tsi?
Maurice Wilkins pib qhov kev sim tshawb fawb hauv DNA uas tau ua tiav hauv Watson thiab Crick qhov kev tshawb pom ntawm nws cov qauv hauv xyoo 1953. Wilkins crystallized DNA nyob rau hauv ib daim ntawv haum rau ntau X-ray diffraction ua hauj lwm thiab tau qhov zoo tshaj plaws X-ray duab pom nyob rau hauv lub sij hawm.
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