Thaum twg DNA tau tsim thawj zaug?

Video: Thaum twg DNA tau tsim thawj zaug?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Ntau tus neeg ntseeg tias American biologist James Watson thiab English physicist Francis Crick nrhiav pom DNA hauv xyoo 1950s. Qhov tseeb, qhov no tsis yog li ntawd. Es, DNA yog ua ntej pom nyob rau hauv lig 1860s los ntawm Swiss chemist Friedrich Miescher.

Kuj paub, qhov twg DNA tau pom thawj zaug?

Nws cov qauv molecular yog ua ntej tau txheeb xyuas los ntawm Francis Crick thiab James Watson ntawm Cavendish Laboratory hauv University of Cambridge hauv 1953, uas nws cov qauv tsim kev siv zog tau coj los ntawm X-ray diffraction cov ntaub ntawv tau txais los ntawm Raymond Gosling, uas yog ib tug tub ntxhais kawm tiav ntawm Rosalind Franklin ntawm King's College.

Qhov thib ob, qhov kev tshawb pom ntawm DNA ua rau dab tsi? Txhua yam tsiaj thiab nroj tsuag sib koom ib yam DNA code. Paub txog cov qauv ntawm DNA thiab yuav ua li cas nws encodes genetic ntaub ntawv qhia tau hais tias lub neej nyob rau hauv lub ntiaj teb no muaj ib tug ntau yam keeb kwm. Qhov tseeb tiag, nws tau ua pov thawj tias Charles Darwin yog txoj cai thaum nws hais tias cov tsiaj tau nqis los ntawm ib tug poj koob yawm txwv.

Tsis tas li ntawd, leej twg xub pom DNA qauv?

Watson

Thaum twg tub ceev xwm pib siv DNA?

Xyoo 1986 yog thaum DNA yog thawj zaug siv hauv kev tshawb nrhiav txhaum cai los ntawm Dr. Jeffreys. 1986. Kev tshawb nrhiav tau siv cov ntiv tes ntiv tes rau hauv ib rooj plaub ntawm ob qhov kev ua phem thiab tua neeg uas tau tshwm sim hauv xyoo 1983 thiab 1986.

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