Video: Erwin Chargaff paub txog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chargaff cov cai
Ua raws li qhov no, Erwin Chargaff nto moo rau dab tsi?
Tus American biochemist Erwin Chargaff (yug xyoo 1905) tau tshawb pom tias DNA yog lub hauv paus tseem ceeb ntawm cov noob, yog li pab tsim ib txoj hauv kev tshiab rau kev kawm txog biology ntawm heredity. Erwin Chargaff yug hauv Austria thaum Lub Yim Hli 11, 1905.
Ib sab saum toj no, thaum twg Erwin Chargaff pab txhawb rau DNA? Xyoo 1949, Chargaff nrhiav pom tias cov proportions ntawm cov hauv paus hauv DNA nyob ntawm cov hom DNA los ntawm.
Tsis tas li cov lus nug yog, Erwin Chargaff pab txhawb rau DNA dab tsi?
Erwin Chargaff tau npaj ob txoj cai tseem ceeb hauv nws lub neej uas tau tsim nyog muaj npe Chargaff cov txoj cai. Thawj thiab zoo tshaj plaws paub ua tau yog los qhia tias nyob rau hauv ntuj DNA tus naj npawb ntawm guanine sib npaug ntawm cov cytosine units thiab tus naj npawb ntawm adenine units sib npaug ntawm cov thymine units.
Dab tsi yog chargaff yuav tsum iab txog?
Tom qab lawv tau txais 1962 Nobel nqi zog rau lawv txoj haujlwm ntawm DNA, Chargaff yog iab txog tsis tau txais txiaj ntsig rau nws txoj haujlwm, thim tawm ntawm nws lub chaw sim thiab sau ntau yam txog nws qhov kev cais tawm.
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Erwin Chargaff tau thov ob txoj cai tseem ceeb hauv nws lub neej uas tsim nyog hu ua Chargaff cov cai. Thawj qhov kev paub zoo tshaj plaws yog los qhia tias nyob rau hauv ntuj DNA tus naj npawb ntawm guanine units sib npaug ntawm cov cytosine units thiab tus naj npawb ntawm adenine units sib npaug ntawm cov thymine units