Class notes
Nucleic Acids
- Course
- Life Sciences
- Institution
- 12th Grade
This document provides information about the structure of DNA and RNA and on what each contains, including nitrogenous bases and sugars
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Nucleic AcidsThe Structure of DNA and RNA
Nucleic Acids
Nucleic acids are biomolecules that store and transmit genetic information. They are
classified into two types: DNA (Deoxyribonucleic Acid) and RNA (Ribonucleic Acid).
DNA (Deoxyribonucleic Acid)
● Four nitrogenous bases:
○ Adenine (A)
○ Thymine (T)
○ Guanine (G)
○ Cytosine (C)
● Contains sugar: Deoxyribose
● Structure: Double-stranded
● Base pairing rules:
○ Adenine (A) always pairs with Thymine (T)
○ Guanine (G) always pairs with Cytosine (C)
● Thymine (T) is present instead of Uracil (U).
RNA (Ribonucleic Acid)
● Four nitrogenous bases:
○ Adenine (A)
○ Uracil (U)
○ Guanine (G)
○ Cytosine (C)
● Contains sugar: Ribose
● Structure: Single-stranded molecule
● Uracil (U) is present instead of Thymine (T).
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