Nitrogenous bases
Chapter 5: CHAPTER 5 · ZOOLOGY · EN medium
From your actual textbook ✓
What does your textbook say about Nitrogenous bases?
Nitrogenous bases The bases are nitrogen containing molecules having the chemical properties of a base (a substance that accepts H + ion or proton in solution). DNA and RNA both have four bases (two purines and two pyrimidines) in their nucleotide chain. Two of the bases, Adenine (A) and Guanine (G) have double carbon–nitrogen ring structures and are called purines. The bases, Thymine (T), Cytosine (C) and Uracil (U) have single ring structure and these are called pyrimidines. Thymine is unique for DNA, while Uracil is unique for RNA.
📖 Class 12 Zoology English 2024 Edition www.tntextbooks.in · Page 73
Read from the source
Complete lesson
Nitrogenous bases The bases are nitrogen containing molecules having the chemical properties of a base (a substance that accepts H + ion or proton in solution). DNA and RNA both have four bases (two purines and two pyrimidines) in their nucleotide chain. Two of the bases, Adenine (A) and Guanine (G) have double carbon–nitrogen ring structures and are called purines. The bases, Thymine (T), Cytosine (C) and Uracil (U) have single ring structure and these are called pyrimidines.
Thymine is unique for DNA, while Uracil is unique for RNA.
Related topics
Want this shaped for your exam marks?
Get an AI answer grounded in your actual textbook — with the exact page reference.
Ask AI about this topic →