NCERT Class 11 Biotechnology Biotechnology: Chapter 9 — Introduction to Bioinformatics
NCERT Class 11 Biotechnology Chapter 9, "Introduction to Bioinformatics," addresses the critical need for managing the vast amounts of data generated by genome sequencing and functional genomics. This chapter introduces bioinformatics as a new scientific field dedicated to handling such extensive biological data, which is beyond human capacity. It covers essential terminology and fundamental concepts of bioinformatics. The chapter highlights how raw biological data can be utilized to extract significant information, particularly concerning proteins of interest, setting the stage for subsequent discussions on protein informatics. This foundational knowledge is crucial for students pursuing biotechnology and related fields within the CBSE curriculum.
Quick info
| Board | CBSE / NCERT |
|---|---|
| Class | Class 11 |
| Subject | Biotechnology |
| Book | Biotechnology |
| Chapter | Chapter 9 — Introduction to Bioinformatics |
| Language | English |
| PDF type | NCERT Textbook |
| Session | CBSE 2026 |
| Reading time | 2 minutes |
| Word count | 223 |
Learning outcomes
- Understand the necessity of bioinformatics due to large-scale biological data.
- Define bioinformatics and its scope.
- Identify key figures and their contributions to the field of bioinformatics.
- Recognize the importance of sequence databases and data representation.
Vocabulary
| Word | Meaning |
|---|---|
| Bioinformatics | A field of science that combines biology, computer science, and information technology to analyze and interpret biological data. |
| Genome sequencing | The process of determining the complete DNA sequence of an organism's genome. |
| Functional genomics | The study of the function, expression, and interactions of genes and proteins. |
| Physical chemist | A scientist who applies the principles of physics to chemical systems. |
| Computational methods | Techniques that use computers to solve scientific problems. |
| Protein sequences | The linear order of amino acids in a protein molecule. |
| Sequence databases | Large collections of biological sequence data, such as DNA or protein sequences. |
| Amino acids | The building blocks of proteins. |
| Data files | Collections of data stored in a computer. |
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Practice questions
- Why has the field of bioinformatics emerged? Answer: Bioinformatics has emerged due to the enormous amount of data generated from genome sequencing and functional genomics, which is beyond human capacity to handle.
- Who was Margaret Oakley Dayhoff and what was her contribution? Answer: Margaret Oakley Dayhoff was an American physical chemist and a pioneer in bioinformatics. She published the 'Atlas of Protein Sequence and Structure' and developed one-letter codes for amino acids.
- What is the purpose of sequence databases? Answer: Sequence databases are used to store and organize biological sequence data, serving as models for later developments and facilitating data analysis.
- What problem did the one-letter codes for amino acids aim to solve? Answer: The one-letter codes for amino acids were developed to reduce the size of data files for computer applications.
Frequently asked questions
What is bioinformatics?
Bioinformatics is a scientific field that uses computational methods to analyze and interpret biological data, especially from genome sequencing and functional genomics.
Why is bioinformatics important?
It is important because the vast amount of data generated in modern biology, like genome sequencing, is too large for humans to handle manually.
Who is considered a pioneer in bioinformatics?
Margaret Oakley Dayhoff is considered a pioneer in bioinformatics for her work on protein sequence databases and amino acid codes.
What was the 'Atlas of Protein Sequence and Structure'?
It was a comprehensive, open-source collection of protein sequences published by Margaret Oakley Dayhoff, which became a model for later sequence databases.
What are one-letter codes for amino acids?
These are abbreviations used to represent amino acids, developed by Margaret Oakley Dayhoff to reduce the size of data files in computer applications.
What kind of data does bioinformatics deal with?
Bioinformatics deals with enormous amounts of data obtained from sources like genome sequencing and functional genomics.
Related resources
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Topics covered
NCERT Class 11 Biotechnology — Biotechnology — Chapter 9 — Introduction to Bioinformatics. Verified by NCERT Help Editorial Team. Reviewed on 29 Jul 2026. Last updated 10 Aug 2026.