Overview of NCERT Class 12 Biology Book
The primary goal of the CBSE Class 12 Biology board exam is to comprehend material from the NCERT textbooks. The authors of these biology NCERT textbooks are professionals from various states across the nation. They comprehend every key topic and idea listed in the syllabus.
NCERT textbooks are essential for providing a thorough understanding of the principles of biology and human welfare, ecology, genetics and evolution, reproduction, and biotechnology.
NCERT Class 12 Biology Book Chapters
Chapter list of class 12 biology is given below:
| Chapter No. | Chapter’s Name |
| Chapter 1 | Reproduction |
| Chapter 2 | Human Reproduction |
| Chapter 3 | Reproductive Health |
| Chapter 4 | Genetics and Evolution |
| Chapter 5 | Molecular Basis of Inheritance |
| Chapter 6 | Evolution |
| Chapter 7 | Biology in Human Welfare |
| Chapter 8 | Biotechnology |
| Chapter 9 | Biotechnology and Its Application |
| Chapter 10 | Ecology |
| Chapter 11 | Ecosystem |
| Chapter 12 | Biodiversity and Conservation |
Chapter 1: Reproduction
- You can master the fundamentals and a basic understanding of sexual reproduction with class 12 NCERT biology chapter 1.
- The NCERT Class 12 Biology Chapter 1 will give you an idea about Sexual Reproduction In Flowering Plants, assists you in familiarising yourself with the process of reproduction in flowers.
Chapter 2: Human Reproduction
- Human Reproduction class 12 are important for learners who want an extensive comprehension of the critical questions.
- The topics discussed in this chapter of class 12 human reproduction NCERT Biology are male and female reproductive systems, gametogenesis, fertilisation, implantation, menstrual cycle, pregnancy, embryo development, lactation and parturition.
Chapter 3: Reproductive Health
- Biology Chapter 3 Reproductive Health Class 12 NCERT assists you to learn about Family Planning, Methods for controlling family size and timing of childbirth. Sexually Transmitted Infections (STIs): Prevention, treatment, and consequences are explained crisply.
- Infertility: Causes, diagnosis, and treatment options, as well as reproductive tract infections (RTIs), including common infections, prevention, and treatment, these all are the topics covered in this chapter.
Chapter 4: Genetics and Evolution
Topics you will learn in chapter
- Heredity and variation
- Deviations from Mendelism-Incomplete dominance, Co-dominance, Multiple alleles and Inheritance of blood groups, Pleiotropy
- Elementary idea of polygenic inheritance
- Chromosome theory of inheritance
- Chromosomes and genes
- Sex determination-In humans, birds, honey bee
- Linkage and crossing over; Sex-linked inheritance-Haemophilia, Colour blindness
- Mendelian disorders in humans-Thalassemia
- Chromosomal disorders in humans; Down’s syndrome, Turner’s and Klinefelter’s syndromes.
Chapter 5: Molecular Basis of Inheritance
- The Molecular Basis of Inheritance constitutes particles and biological components like proteins, DNA, and RNA.
- Topics like the Translation process by which mRNA is decoded by ribosomes to synthesise proteins, using transfer RNA (tRNA) molecules are also given with detailed pictures.
Chapter 6: Evolution
Subtopics for NCERT Solutions for Class 12 Biology Chapter 6 – Evolution
| Sl. Number | Subtopic Name |
| 6.1 | Origin of Life |
| 6.2 | Evolution of Life Forms – A Theory |
| 6.3 | What is the Evidence for Evolution? |
| 6.4 | What is Adaptive Radiation? |
| 6.5 | Biological Evolution |
| 6.6 | Mechanism of Evolution |
| 6.7 | Hardy – Weinberg Principle |
| 6.8 | A Brief Account of Evolution |
| 6.9 | Origin and Evolution of Man |
Chapter 7: Biology in Human Welfare
- This chapter covers topics like common diseases, their causes, prevention, and the role of microbes in both positive and negative ways for human health and development.
- Key Concepts of this chapters are Human Health and Disease,Microbes in Human Welfare,Strategies for Food Enhancement
Chapter 8: Biotechnology
- You will get to know about Biotechnological Applications in Agriculture, Biotechnological Applications in Medicine and Transgenic Animals
Chapter 9: Biotechnology and its Applications
- Chapter 9, “Biotechnology and its Applications” in Class 12 Biology, focuses on the practical uses of biotechnology in various fields, including medicine, agriculture, and industry.
- It explores how biotechnology is used to produce biopharmaceuticals, diagnostic tools, genetically modified crops, processed foods, and solutions for bioremediation, waste treatment, and energy production.
Chapter 10: Ecology
Chapter 11: Ecosystem
- In this chapter you will get to know about structure and function of ecosystem, energy flow, decomposition, ecological pyramid
Chapter 12: Biodiversity and Conservation
- Chapter 12 in a biology textbook typically covers biodiversity and conservation, exploring the variety of life on Earth and the strategies for its protection.
- This chapter delves into the different levels of biodiversity, the factors contributing to its loss, and the various methods used to conserve it.
How to Use NCERT Class 12 Biology Books Effectively
Understand the Syllabus Thoroughly: Before starting the NCERT book, it is very important to know your syllabus very well.
Follow a Consistent Study Schedule: Make a proper routine to get a good knowledge of biology books, which consist of a proper diagram and flowchart.
Frequently Asked Questions:
Question 1: How many chapters are there in the Class 12 Biology NCERT Book ?
Answer 1: There are a total 12 chapters in the Class 12 Biology NCERT Book.
Question 2: How can I buy Class 12 Biology NCERT books online?
Answer 2: You can buy class 12 biology books on Amazon or flipkart.
Question 3: What is the price of a Class 12 Biology book online?
Answer 3: It is around 175 rupees for a class 12 biology book.
Question 4: What are the other reference books for Class 12 Biology?
Answer 4: For Class 12 Biology, some other good reference books include MTG 100 Percent Biology Textbook, S. Chand’s Biology for Class XII, and Trueman’s Elementary Biology for Class 12.