Nucleic acids tau pom nyob rau xyoo 1868, thaum muaj nees nkaum plaub xyoos tus kws kho mob Swiss Friedrich Miescher cais cov tshuaj tshiab los ntawm cov nuclei ntawm cov qe ntshav dawb. Cov tshuaj no tsis yog cov protein lossis lipid lossis carbohydrate; yog li ntawd, nws yog ib yam tshiab ntawm cov roj ntsha molecule.
Leej twg xub pom nucleic acid?
Tus tus kws tshawb fawb Swiss Friedrich Miescher nrhiav pom nucleic acids (DNA) hauv xyoo 1868. Tom qab ntawd, nws tau tsa lub tswv yim tias lawv tuaj yeem koom nrog hauv kev tsim noob neej.
DNA sawv cev rau dab tsi ?
Teb: Deoxyribonucleic acid - ib qho loj molecule ntawm nucleic acid pom nyob rau hauv lub nuclei, feem ntau nyob rau hauv chromosomes, ntawm cov hlwb nyob. DNA tswj cov haujlwm xws li kev tsim cov protein molecules hauv lub cell, thiab nqa cov qauv rau kev yug me nyuam ntawm txhua tus yam ntxwv ntawm nws cov hom tshwj xeeb.
Miescher hu ua DNA dab tsi?
In 1869, Friedrich Miescher cais " nuclein,"DNA nrog cov proteins uas cuam tshuam, los ntawm cell nuclei. Nws yog thawj tus txheeb xyuas DNA ua ib qho molecule.
4 hom nucleic acids yog dab tsi?
Lub sijhawm xyoo 1920-45, ib txwm tshwm sim nucleic acid polymers (DNA thiab RNA) tau xav tias tsuas muaj plaub canonical nucleosides ( ribo-lossis deoxy-derivatives): adenosine, cytosine, guanosine, thiab uridine lossis thymidine.
