Cov kws tshawb fawb xav li cas txog cov ntaub ntawv ntawm caj ces?
Cov kws tshawb fawb xav li cas txog cov ntaub ntawv ntawm caj ces?

Video: Cov kws tshawb fawb xav li cas txog cov ntaub ntawv ntawm caj ces?

Video: Cov kws tshawb fawb xav li cas txog cov ntaub ntawv ntawm caj ces?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
Anonim

“ Cov kws tshawb fawb pib xav hais tias DNA yog ib qho yooj yim molecule yuav ua tau nqa cov ntaub ntawv genetic . Txawm li cas los xij, ib qho kev sim ua los ntawm ntau pawg ntawm cov kws tshawb fawb pib qhia tias qhov tseeb nws yog DNA, tsis yog protein, uas nqa tus cov ntaub ntawv caj ces.

Ib yam li ntawd, tib neeg nug, hom molecule twg cov kws tshawb fawb ntseeg tias muaj cov ntaub ntawv ntawm caj ces?

DNA

Tsis tas li ntawd, Avery tau ua pov thawj li cas tias DNA tuaj yeem nqa cov ntaub ntawv caj ces? Oswald Avery , Colin MacLeod, thiab Maclyn McCarty tau qhia tias DNA (tsis muaj protein ntau) ua tau hloov cov khoom ntawm cov hlwb, qhia meej txog cov tshuaj lom neeg ntawm noob . Avery , MacLeod thiab McCarty tau txheeb xyuas DNA raws li "txoj cai hloov pauv" thaum kawm Streptococcus pneumoniae, cov kab mob uas ua tau ua rau mob ntsws.

Ib yam li ntawd ib tug yuav nug, leej twg pom tias DNA nqa cov ntaub ntawv caj ces?

Fred Griffith

Vim li cas cov kws tshawb fawb xav tias cov protein yog cov khoom siv caj ces?

los ntawm 1940s cov kws tshawb fawb paub tias chromosomes nqa cov noob caj noob ces khoom thiab muaj DNA thiab protein ntau . Feem ntau cov kws tshawb fawb xav tias protein yog cov khoom siv caj ces vim; cov proteins yog macromolecules nrog zoo heterogeneity thiab kev ua haujlwm tshwj xeeb. Me ntsis paub txog nucleic acids.

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