Write the name and structure of purine and pyrimidine bases present in nucleic acid?
Answers
Purines (A/G) have a double ring and pyrimidines (C/T) have a single ring.
nucleic acid
A polymer made of repeating nucleotides. Examples are DNA and RNA.
base
1. a compound that reacts with an acid to form a salt. 2. a compound that produces hydroxide ions in aqueous solution (Arrhenius). 3. a molecule or ion that captures hydrogen ions.(Bronsted-Lowry). 4. a molecule or ion that donates an electron pair to form a chemical bond.(Lewis).
acid
1. a compound which releases hydrogen ions (H+) in solution (Arrhenius). 2. a compound containing detachable hydrogen ions (Bronsted-Lowry). 3. a compound that can accept a pair of electrons from a base (Lewis)..
Explanation:
Thus, in DNA, the purines adenine (A) and guanine (G) pair up with the pyrimidines thymine (T) and cytosine (C), respectively. In RNA, the complement of adenine (A) is uracil (U) instead of thymine (T), so the pairs that form are adenine:uracil and guanine:cytosine.
- Chemical formula: C4H4N2
- Solubility in water: Miscible (25°C)
- Melting point: 20 to 22 °C (68 to 72 °F; 293 to 295 K)
- Boiling point: 123 to 124 °C (253 to 255 °F; 396 to 397 K)