CBSE Class 12 Biology Syllabus 2023-24, NCERT PDF Download

Class 12th Biology Syllabus 2023-24: Unit-VII Genetics and Evolution

Chapter 5: Principles of Inheritance and Variation

• Heredity and variation: Mendelian inheritance; 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 and 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 6:  Molecular Basis of Inheritance

• Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging;
• DNA replication; Central Dogma; transcription, genetic code, translation; gene expression and regulation – lac operon;
• Genome, Human and rice genome projects; DNA fingerprinting.

Chapter 7: Evolution

• Origin of life; biological evolution and evidence for biological evolution (palaeontology, comparative anatomy, embryology and molecular pieces of evidence);
• Darwin’s contribution, modern synthetic theory of evolution; mechanism of evolution – variation (mutation and recombination) and natural selection with examples, types of natural selection;
• Gene flow and genetic drift; Hardy – Weinberg’s principle; adaptive radiation; human evolution.

Biology Syllabus Class 12 CBSE 2023-24: Unit-VIII Biology and Human Welfare

Chapter 8:  Human Health and Diseases

• Pathogens; parasites causing human diseases (malaria, dengue, chikungunya, filariasis, ascariasis, typhoid, pneumonia, common cold, amoebiasis, ring worm) and their control;
• Basic concepts of immunology – vaccines; cancer, HIV and AIDS; Adolescence – drug and alcohol abuse.

Chapter 10: Microbes in Human Welfare

• Microbes in food processing, industrial production, sewage treatment, energy generation and microbes as bio-control agents and bio-fertilizers.
• Antibiotics; production and judicioususe.

Biology Syllabus Class 12 CBSE 2023-24: Unit-IX Biotechnology and its Applications

Chapter 11: Biotechnology – Principles and Processes

• Genetic Engineering (Recombinant DNA Technology).

Chapter 12: Biotechnology and its Applications

• Application of biotechnology in health and agriculture: Human insulin and vaccine production, stem cell technology, gene therapy;
• genetically modified organisms – Bt crops; transgenic animals; biosafety issues, biopiracy and patents.

Syllabus of Biology Class 12 CBSE 2023-24: Unit-X Ecology and Environment

Chapter 13: Organisms and Populations

• Population interactions – mutualism, competition, predation, parasitism; population attributes – growth, birth rate and death rate, age distribution. (Topics excluded: Organism and its Environment, Major Aboitic Factors, Responses to Abioitic Factors, Adaptations)

Chapter 14: Ecosystem

• Ecosystems: Patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy (Topics excluded: Ecological Succession and Nutrient Cycles).

Class 12 biology syllabus 2023-24 Chapter 15: Biodiversity and its Conservation

• Biodiversity- concept, patterns, importance; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, Sacred Groves, biosphere reserves, national parks, wildlife, sanctuaries and Ramsar sites.

Check: CBSE Class 12 Biology Additional Practice Paper 2024

Class 12 Biology Syllabus 2023-24 PDF NCERT Based

The syllabus of biology class 12 CBSE 2023-24 is a comprehensive and demanding subject that will assist students in developing a thorough understanding of biology. Students will develop the abilities they need to succeed in college and beyond by mastering the topics in the syllabus. Check here the CBSE class 12 biology syllabus 2023-24 pdf NCERT based.

The marks distribution for visually impaired students in the CBSE Class 12 Biology practical exams of 2023 in total 30 marks are given below.

• Identification/familiarity with the apparatus – 5
• Written test (based on the given or prescribed practicals) -10
• Practical Records – 5
• Viva -10

Importance of CBSE Biology 12th Syllabus 2024

There are numerous advantages to studying the CBSE Class 12 Biology Syllabus. Some of the key benefits are:

• CBSE Class 12 Biology Syllabus 2023-24 covers a variety of topics, including genetics and biotechnology, which are necessary for students to understand in order to pursue further studies in this field.
• The CBSE Class 12 Biology Syllabus 2023-24 covers a variety of topics, including ecology and physiology. This allows students to gain greater awareness of the world around them and how the human body functions.
• Students who complete the CBSE Class 12 biology syllabus can pursue a variety of careers. Some career options include being a research scientist, a medical expert, or an environmentalist.
• The CBSE Biology Syllabus 2024 also helps them improve their critical thinking and problem-solving abilities.
• Studying the CBSE Class 12 biology syllabus may assist students improve their communication skills. Because they can communicate their comprehension of complex biological concepts to others, whether it’s through writing a research paper or presenting a project to a group.
• The CBSE Class 12 biology syllabus also includes topics about human health conditions, which can help students recognize how to maintain their health and avoid disease.

Also, check out other syllabi here,