Video: Dab tsi yog qhov txawv ntawm purine thiab pyrimidine bases?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov cov purines Hauv DNA yog adenine thiab guanine, tib yam li hauv RNA. Cov pyrimidines ua hauv DNA yog cytosine thiab thymine; Hauv RNA, lawv yog cytosine thiab uracil. Purines loj dua pyrimidines ua vim lawv muaj ob-ntiv nplhaib qauv thaum pyrimidines ua tsuas muaj ib lub nplhaib xwb.
Kuj paub, lub hauv paus twg yog purines thiab uas yog pyrimidines?
Purines thiab Pyrimidines yog cov hauv paus nitrogenous uas ua rau ob hom nucleotide hauv paus hauv DNA thiab RNA . Ob-carbon nitrogen nplhaib puag ( adenine thiab guanine ) yog purines, thaum ib-carbon nitrogen nplhaib hauv paus ( thymine thiab cytosine ) yog pyrimidines.
Kuj Paub, dab tsi yog cov purine hauv paus pom hauv nucleic acids? Qhov tseem ceeb tshaj plaws lom neeg hloov pauv cov purines yog adenine thiab guanine, uas yog qhov loj purine hauv paus pom hauv RNA thiab DNA. Hauv DNA, guanine thiab adenine puag khub (saib Watson-Crick pairing) nrog cytosine thiab thymine (saib pyrimidines) feem.
Ntxiv mus, cov hauv paus twg yog pyrimidines?
Qhov tseem ceeb tshaj plaws ntawm kev hloov pauv pyrimidines yog cytosine, thymine, thiab uracil. Cytosine thiab thymine yog ob lub hauv paus loj pyrimidine hauv DNA thiab puag khub (saib Watson-Crick Pairing) nrog guanine thiab adenine (saib Purine Bases), raws. Nyob rau hauv RNA, uracil hloov thymine thiab puag khub nrog adenine.
Vim li cas purines hu ua pyrimidines?
Lub heterocyclic carbon-nitrogen skeleton ntawm DNA bases yog hu ua purine thiab pyrimidine . Qhov no yog ib txoj kev ruam tiag tiag kom nco ntsoov yog vim li cas cov purines muaj ob lub nplhaib carbon. Purines muaj ob lub nplhaib vim tib neeg ntshiab thaum lawv sib yuav.
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