Purines and pyrimidines are the two types of nitrogenous bases that make up the building blocks of DNA and RNA. These bases are responsible for encoding genetic information. Learning the differences between purines and pyrimidines is crucial in understanding the structure and function of DNA and RNA. In this article, we will compare and discuss the similarities and differences between purines and pyrimidines. Purines and Pyrimidines Purines and pyrimidines are both organic compounds that take part in the synthesis of DNA and RNA, therefore they are called as the building blocks of the genetic material – DNA and RNA. They are nitrogenous bases that make up the two different nucleotides in DNA and RNA. Purines (adenine and guanine) are two-carbon nitrogen ring bases while pyrimidines (cytosine and thymine) are one-carbon nitrogen ring bases. Also Read: Amino Acids Given below in a tabular column ... The primary purine found in coffee beans and tea leaves is 1,2,7-trimethylxanthine (caffeine) which is a cardiac and respiratory stimulant and is frequently used in headache powders. The main purine component of human urine is 1-methylxanthine. Learn about the two types of nitrogenous bases in DNA and RNA, their chemical properties, dietary sources, and synthesis pathways. Compare and contrast purines and pyrimidines with a table and examples.
