Notes from NEET topper
Nitrogenous Bases and Nucleic Acid Introduction:
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Nitrogenous bases are the building blocks of nucleic acids, DNA (deoxyribonucleic acid), and RNA (ribonucleic acid).
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Nucleic acids are essential for the storage and transmission of genetic information in living organisms.
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DNA contains the genetic instructions necessary for development, functioning, and reproduction, while RNA plays a key role in protein synthesis.
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Nitrogenous bases in DNA include adenine (A), cytosine (C), guanine (G), and thymine (T), while RNA replaces thymine with uracil (U).
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Base pairing rules, such as A pairing with T (or U in RNA) and C pairing with G, dictate the complementary structure of DNA strands and RNA molecules.
