Cov lus teb raug yog A: qhia txog ribose thiab deoxyribose Phoebus Aaron Theodore Levene muaj npe nrov rau nws txoj kev tshawb fawb txog cov qauv thiab kev ua haujlwm ntawm nucleic acids. Nws categorized ntau hom nucleic acids uas yog DNA (deoxyribonucleic acid) thiab RNA (ribonucleic acid).
Phoebus Levene nrhiav tau dab tsi hauv xyoo 1919?
Nws hu cov khoom no yog nuclein, tab sis tom qab ntawd nws hu ua nucleic acid. Tom qab ntawd, 50 xyoo tom qab, xyoo 1919, Lavxias teb sab biochemist Phoebus Levene tau hais tias nucleic acids yog cov molecules ua los ntawm phosphate, qab zib, thiab plaub nitrogenous bases-adenine (A), guanine (G), cytosine (C), thiab thymine (T).
Vim li cas Levene qhov kev tshawb pom tseem ceeb?
Txawm hais tias qhov tseem ceeb ntawm nucleic acids tsis tau lees paub thaum nws pib nws txoj kev tshawb fawb, tom qab kev tshawb pom pom DNA thiab RNA yog cov ntsiab lus tseem ceeb hauv kev saib xyuas lub neej.
Leej twg nrhiav tau Tetranucleotide hypothesis?
Phoebus Aaron Levene tau tsim qhov kev xav ntawm tetranucleotide rau cov qauv ntawm nucleic acids hauv xyoo 1909 thiab tau ua kom zoo dua nws thaum lub sijhawm peb xyoo caum ntawm nws lub neej. Rau qee tus, qhov kev xav no yog ib qho teeb meem loj hauv kev paub txog lub peev xwm ntawm desoxyribonucleic acid ntawm kev ua cov khoom ntawm heredity.
Levene nrhiav tau dab tsi?
Tus neeg Lavxias-Asmeskas biochemist Phoebus Levene (1869-1940), uas tau tshawb pom ribose qab zibhauv xyoo 1909 thiab deoxyribose qab zib hauv xyoo 1929, qhia txog cov qauv ntawm nucleic acid raws li kev rov ua dua. tetramer. Nws hu ua phosphate - qab zib - lub hauv paus unit a nucleotide.
