What Is DNA/RNA Base and Sequence Pair

This section provides a quick introduction of DNA/RNA base pairs and sequence pairs. A base pair is pair of two complementary nucleobases linked by hydrogen bonds. A sequence pair is a pair of two complementary sections of DNA/RNA sequence with their nucleobases form base pairs.

What Is DNA/RNA Base Pair? - A DNA/RNA base pair is a pair of complementary nucleobases used in DNA/RNA linked together by hydrogen bonds. There are only 3 possible combinations of two nucleobases that complementary to each other as shown below (source: chemtube3d.com):

DNA/RNA Base Pairs: G-C, A-T, A-U
DNA/RNA Base Pairs: G-C, A-T, A-U

Dash lines in the above diagram show hydrogen bonds in each pair. G-C pair has 3 hydrogen bonds instead of 2. So it is harder to separate a G-C pair than A-T or A-U pair.

What is DNA/RNA Sequence Pair? - A DNA/RNA sequence pair is a section of a DNA/RNA sequence lined up with another complementary section of itself or another DNA/RNA sequence in the reverse order. All nucleobases of the first section forms base pairs with corresponding nucleobases of the second section as shown below (source: quora.com):

DNA/RNA Sequence Pairs
DNA/RNA Sequence Pairs

The left part of the above digram shows a DNA sequence pair formed in a double-helix conformation. The right part shows multiple base pairs.

Table of Contents

 About This Book

 Introduction of Molecules

 Molecule Names and Identifications

 Molecule Mass and Weight

 Protein and Amino Acid

Nucleobase, Nucleoside, Nucleotide, DNA and RNA

 What Is Nucleobase

 What Is Nucleoside

 What Is Nucleotide

 What Is Nucleic Acid

 What Is RNA (Ribonucleic Acid)

 What Is DNA (Deoxyribonucleic Acid)

 RNA Primary Structure - Helix

 DNA Primary Structure - Double Helix

What Is DNA/RNA Base and Sequence Pair

 What Is Chromosome

 Gene and Chromosome

 Protein Kinase (PK)

 DNA Sequencing

 Gene Mutation

 SDF (Structure Data File)

 PyMol Installation

 PyMol GUI and CLI

 PyMol Selections

 PyMol Editing Functions

 PyMol Measurement Functions

 PyMol Movie Functions

 PyMol Python Integration

 PyMol Object Functions

 ChEMBL Database - European Molecular Biology Laboratory

 PubChem Database - National Library of Medicine

 PDB (Protein Data Bank)

 INSDC (International Nucleotide Sequence Database Collaboration)

 HGNC (HUGO Gene Nomenclature Committee)

 Relocated Tutorials

 Resources and Tools

 Molecule Related Terminologies

 References

 Full Version in PDF/EPUB