It also donates an amino group in synthesis reactions , e . g . the synthesis of purines and pyrimidines 还可参加合成反应生成一系列的氨基酸，例如嘌呤和嘧啶的合成。
The most abundant bases are cytosine , thiamine , and uracil ( pyrimidines ) and adenine and guanine ( purines ) 最丰富的碱基是胞嘧啶，胸腺嘧啶，尿嘧啶，腺嘌呤和鸟嘌呤。
It is important in the growth and reproduction of cells , participating in the synthesis of purines and thymine 在细胞生长和再生中也很重要，参与了嘌呤和嘧啶的合成。
Base pairing the bonding relationship between purine and pyrimidine bases in the nucleotides of dna and rna 碱基配对：在dna和rna的核苷酸中，嘌呤和嘧啶之间相匹配的关系。
In dna , four different bases are found . two of these , adenine and guanine , are double - ring structures called purines 在dna中，有四种不同的基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。
In dna , four different bases are found . two of these , adenine and guanine , are double - ring structures called purines 在dna中，有四种不同的碱基，其中的两个为腺嘌呤和鸟嘌呤，即称为嘌呤的双环结构。
Many of them love drinking alcohol and eating foods which are rich in purine , such as offal , shellfish and seafood 他们多有饮酒的习惯，喜欢吃动物内脏贝壳类及海产等，这些食物都含有高成份的嘌呤。
The fumarate ion participates in several important metabolic pathways , e . g . the krebs cycle , purine pathways , and the urea cycle 延胡索酸分别参与多种重要的代谢途径，如卡尔文循环、嘌呤途径和尿素循环。
Many of them love drinking alcohol and eating foods which are rich in purine , such as offal , shellfish and seafood 他们多有饮酒的习惯，喜欢吃动物内脏、贝壳类及海产等，这些食物都含有高成份的嘌呤。
Purine a simple nitrogenous organic molecule with a double - ring structure ? a 6 - membered pyrimidine ring fused to a 5 - membered imidazole ring 嘌呤：一种简单的含氮有机分子，具一个双环结构? ?六元嘧啶环融合成一个五元咪唑环。
