Class 12 Biology NCERT Solutions

Class 12 Biology NCERT solutions are here. SimplyAcad has brought you a detailed syllabus of Class 12 Biology to support students in scoring well in their approaching examinations. NCERT Solutions are given chapter-wise wise prepared by the subject experts of top education firms. 

Students can easily access the answers by scrolling below and gaining deep insights into the chapter. Weightage of each chapter is also provided to help students evaluate the value of each section of the units.

Class 12 Biology NCERT solutions Chapter-wise

• Chapter 1 Sexual Reproduction in Flowering Plants
• Chapter 2 Human Reproduction
• Chapter 3 Reproductive Health
• Chapter 4 Principles of Inheritance and Variation
• Chapter 5 Molecular Basis of Inheritance
• Chapter 6 Evolution
• Chapter 7 Human Health and Diseases
• Chapter 8 Microbes in Human Welfare
• Chapter 9 Biotechnology Principles and Processes
• Chapter 10 Biotechnology and Its Application
• Chapter 11 Organisms and Populations
• Chapter 12 Ecosystem
• Chapter 13 Biodiversity and Conservation

CBSE Marking Scheme 2024-25

CBSE 12th board examination is a significant milestone in every student’s life, the organisation has divided the entire syllabus of 2024-25 with different weightages. It will allow students to prepare themselves and understand the chapter better. 

Units	Title	Marks
VI	Reproduction: Chapters – 1, 2 and 3	16
VII	Genetics and Evolution: Chapters – 4, 5, and 6	20
VIII	Biology and Human Welfare: Chapters – 7 and 8	12
IX	Biotechnology and its Applications: Chapters – 9 and 10	12
X	Ecology and Environment	10
	Total	100

Class 12 Biology NCERT solutions Chapter Details

Chapter 1: Reproduction in Organisms

Explains how organisms reproduce. Covers both asexual and sexual reproduction.

Chapter 2: Sexual Reproduction in Flowering Plants

Details the structure and process of sexual reproduction in plants, including fertilization and seed formation.

Chapter 3: Human Reproduction

Covers human reproductive systems, gametogenesis, pregnancy, and related processes.

Chapter 4: Reproductive Health

Discusses reproductive health, birth control, STDs, and infertility.

Chapter 5: Principles of Inheritance and Variation

Focuses on genetics, Mendel’s laws, and genetic disorders.

Chapter 6: Molecular Basis of Inheritance

Explores DNA, RNA, gene expression, and the Human Genome Project.

Chapter 7: Evolution

Studies the origin of life, natural selection, and human evolution.

Chapter 8: Human Health and Diseases

Covers common diseases, immunity, cancer, and drug abuse.

Chapter 9: Strategies for Enhancement in Food Production

Explains techniques in animal husbandry, plant breeding, and food production.

Chapter 10: Microbes in Human Welfare

Details the role of microbes in food processing, industry, and biocontrol.

Chapter 11: Biotechnology Principles and Processes

Covers genetic engineering and recombinant DNA technology.

Chapter 12: Biotechnology and Its Application

Discusses the use of biotechnology in agriculture, medicine, and ethics.

Chapter 13: Organisms and Populations

Explores ecology at the organism and population levels, including interactions and adaptations.

Chapter 14: Ecosystem

Examines ecosystem structure, energy flow, and ecological pyramids.

Chapter 15: Biodiversity and Conservation

Focuses on biodiversity, its importance, and conservation methods.

Chapter 16: Environmental Issues

Discusses pollution, global warming, and other environmental challenges.

These chapters cover essential biology concepts for Class 12, with resources available at SimplyAcad for in-depth study.