Ntau tus neeg ntseeg tias Asmeskas biologist James Watson thiab tus kws kho mob Askiv Francis Crick pom DNA hauv xyoo 1950. Qhov tseeb, qhov no tsis yog li ntawd. Hloov chaw, DNA tau pom thawj zaug nyob rau xyoo 1860s los ntawm Swiss chemist Friedrich Miescher.
Thaum twg DNA tau pom thawj zaug thiab los ntawm leej twg?
Cov molecule tam sim no hu ua DNA tau pom thawj zaug hauv xyoo 1860 los ntawm Swiss chemist hu ua Johann Friedrich Miescher Johann tau tawm mus tshawb fawb cov khoom tseem ceeb ntawm cov qe ntshav dawb ?, ib feem ntawm peb lub cev tiv thaiv kab mob. Lub hauv paus tseem ceeb ntawm cov hlwb no? yog cov ntaub qhwv cov kua nplaum uas sau los ntawm cov chaw kho mob nyob ze.
DNA nrhiav tau hnub twg?
On Lub Ob Hlis 28, 1953, Cambridge University kws tshawb fawb James D. Watson thiab Francis H. C. Crick tshaj tawm tias lawv tau txiav txim siab cov qauv ob-helix ntawm DNA, cov molecule uas muaj tib neeg cov noob.
Nws siv sijhawm ntev npaum li cas Watson thiab Crick kom pom DNA?
Lawv txeeb tau qhov teeb meem no thaum lawv ntsib thawj zaug, thaum lub caij ntuj sov xyoo 1951, thiab tau ua raws li kev xav ib leeg rau lub sijhawm tom ntej kaum yim hli.
DNA nrhiav tau li cas?
Tsim los ntawm Rosalind Franklin siv cov txheej txheem hu ua X-ray crystallography, nws tau nthuav tawm cov duab helical ntawm DNA molecule. … Watson thiab Crick pom tau hais tias DNA yog tsim los ntawm ob txoj hlua ntawm nucleotide khub uas encode cov ntaub ntawv caj ces rau txhua yam muaj sia.
