Txawm hais tias tsawg tus neeg paub nws, 1869 yog lub xyoo tseem ceeb hauv kev tshawb fawb caj ces, vim nws yog xyoo uas Swiss lub cev muaj zog kws tshuaj Friedrich Miescher thawj zaug txheeb xyuas qhov nws hu ua "nuclein" nyob rau hauv lub nuclei ntawm tib neeg cov qe ntshav dawb.
Leej twg pom DNA nuclein?
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 txawv. Phoebus Levene yog ib tug kws tshuaj organic nyob rau thaum ntxov 1900's. Tej zaum nws paub zoo tshaj plaws rau nws qhov tsis raug tetranucleotide hypothesis ntawm DNA.
Leej twg xub pom DNA thiab muab nws lub npe tshiab huv?
Lub molecule tam sim no hu ua DNA yog thawj zaug pom nyob rau hauv 1860s los ntawm ib tug Swiss chemist hu ua Johann Friedrich Miescher.
DNA thawj zaug nrhiav tau li cas?
DNA tau tshawb pom nyob rau xyoo 1869 los ntawm Swiss tus kws tshawb fawb Friedrich Miescher, uas yog thawj zaug sim kawm txog cov qog ntshav qog ntshav (cov qe ntshav dawb). Hloov chaw, nws cais cov molecule tshiab uas nws hu ua nuclein (DNA nrog cov proteins uas txuam nrog) los ntawm lub cell nucleus.
Nuclein hloov npe li cas?
1889: Richard Altmann renames "nuclein" rau " nucleic acid. "
