Video: Dab tsi hauv qab no yog pyrimidines?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj ob hom purine: Adenine thiab Guanine. Ob leeg ntawm cov no tshwm sim hauv DNA thiab RNA. Muaj peb yam tseem ceeb ntawm pyrimidines ua Txawm li cas los xij, tsuas yog ib qho ntawm lawv muaj nyob hauv DNA thiab RNA: Cytosine. Lwm ob yog Uracil, uas yog RNA nkaus xwb, thiab Thymine, uas yog DNA tshwj xeeb.
Ib yam li ntawd, koj tuaj yeem nug, qhov twg hauv qab no yog cov piv txwv ntawm pyrimidines?
Peb pyrimidine bases, thymine, cytosine, thiab uracil, thiab ob lub hauv paus purine, adenine thiab guanine, yog txhua yam uas xav tau los tsim kom muaj ntau yam sib txawv uas pom nyob hauv ntau hom ntawm peb lub ntiaj teb. Sib phim ib pyrimidine puag nrog ib tug purine puag tsim ib lub hauv paus khub.
Qhov twg hauv qab no yog purines thiab uas yog pyrimidines? Purines thiab Pyrimidines yog cov hauv paus nitrogenous uas ua rau ob yam sib txawv ntawm nucleotide hauv DNA thiab RNA. Ob-carbon nitrogen nplhaib hauv paus (adenine thiab guanine) yog cov purines , thaum ib-carbon nitrogen nplhaib hauv paus (thymine thiab cytosine) yog pyrimidines ua.
Kuj Paub, qhov twg hauv qab no yog pyrimidine puag?
Qhov tseem ceeb tshaj plaws lom neeg hloov pauv pyrimidines ua yog cytosine, thymine, thiab uracil. Cytosine thiab thymine yog ob qho loj pyrimidine hauv paus hauv DNA thiab puag khub (saib Watson–Crick Pairing) nrog guanine thiab adenine (saib Purine Bases ), raws. Hauv RNA, uracil hloov thymine thiab puag ua ke nrog adenine.
Dab tsi yog ob pyrimidines hauv DNA?
Muaj plaub lub hauv paus nitrogenous hauv DNA , ob purines (adenine thiab guanine) thiab ob pyrimidines (cytosine thiab thymine). A DNA molecule yog tsim los ntawm ob strands.
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