Vim lawv cov qauv zoo sib xws, peb feem ntau xa cov cuaj-tus tswv cuab ob lub nplhaib adenine thiab guanine ua purines, thiab rau-tus tswv cuab ib lub nplhaib thymine, uracil, thiab cytosine yog pyrimidinesFig. 1.5. (A) Cov qauv tshuaj ntawm pyrimidines thiab purines nitrogenous hauv paus hauv DNA thiab RNA.
YPuas yog cytosine yog pyrimidine?
Cytosine, nitrogenous puag tau los ntawm pyrimidine uas tshwm sim hauv nucleic acids, cov tshuaj tswj hwm ntawm txhua lub hlwb, thiab hauv qee cov coenzymes, cov tshuaj uas ua ke nrog Cov enzymes hauv tshuaj lom neeg hauv lub cev.
cytosine txhais li cas?
: a pyrimidine base C4 H5N3O uas sau cov ntaub ntawv caj ces hauv cov kab mob polynucleotide ntawm DNA lossis RNA - piv rau adenine, guanine, thymine, uracil.
Purine piv txwv yog dab tsi?
Piv txwv ntawm purines suav nrog caffeine, xanthine, hypoxanthine, uric acid, theobromine, thiab nitrogenous bases adenine thiab guanine Purines ua haujlwm zoo ib yam li pyrimidines hauv kab mob. Lawv yog ib feem ntawm DNA thiab RNA, xov tooj ntawm tes taw qhia, lub zog cia, thiab kev tswj enzyme.
4 purines yog dab tsi?
Piv txwv ntawm cov qauv ntawm purines: (1) adenine; (2) hypoxanthine; (3) guanine (G). Pyrimidines: (4) uracil; (5) cytosine (C); (6) thymine (T). Nucleosides: (7) adenosine (A); (8) uridine (U). Nucleotides: (9) 3′, 5′-cAMP; (10) adenosine 5′-triphosphate.
