Two complementary strands of the DNA can accommodate only three nitrogen rings between them. More or fewer nitrogen rings will not fit because of space issues. Thus, purine-purine cannot pair with each other due to the unavailability of the required space to bond together in the DNA double helix. IsRead More →
At neutral pH, pyrimidines are hydrophobic and therefore relatively insoluble. Substituted pyrimidines are components of ribonucleic acids (RNA), deoxyribonucleic acids (DNA), and coenzymes, and are broadly distributed in nature. Why pyrimidine is soluble in water? Explanation: Pyridine, C6H5N , features a nitrogen centre that is more electronegative than the carbocyclicRead More →
Abstract. A purine is an aromatic heterocycle composed of carbon and nitrogen. Purines include adenine and guanine, which participate in DNA and RNA formation. Purines are also constituents of other important biomolecules, such as ATP, GTP, cyclic AMP, NADH, and coenzyme A. What type of rings do purines have? TheRead More →
The purines in DNA are adenine and guanine, the same as in RNA. The pyrimidines in DNA are cytosine and thymine; in RNA, they are cytosine and uracil. Purines are larger than pyrimidines because they have a two-ring structure while pyrimidines only have a single ring. Are cytosine and guanineRead More →
Meats: These include chicken, beef, pork and lamb. Other fish: Fresh or. canned salmon generally contains lower levels of purines than most other. fish. Does pork bother gout? Avoid meats such as liver, kidney and sweetbreads, which have high purine levels and contribute to high blood levels of uric acid.Read More →