CBSE Class 12 Syllabus 2024 – 25 For Class 12 Biology Download Online CBSE Syllabus Class 12 Biology Syllabus As per Guidelines.
CBSE पाठ्यक्रम 12th Class Biology As Per NCERT
सीबीएसई बोर्ड 12वीं सिलेबस 2024 | CBSE Syllabus 2024 2025 | CBSE Biology Syllabus for Class XII | CBSE Class 12 Biology Syllabus www.cbse.gov.in
CBSE Latest Syllabus for Class 12 Biology is important for students to prepare their study time to time. Here we are provided New Edition CBSE Syllabus 2024. Stay tuned with Us for Get All Subjects Solution Biology MCQ, Physics MCQ, Difference between in Physics, Difference between in Biology
Exam Pattern for Year 2024 – 25
- Competency Focused Questions in the form of MCQs/ Case Based Questions, Source-based Integrated Questions or any other type = 40%
- Select response type questions(MCQ) = 20%
- Constructed response questions (Short Answer Questions/ Long Answer type Questions, as per existing pattern) = 40%
In case you have missed:- NCERT Solutions for Class 12
CBSE Class 12 Biology Syllabus 2024 2025
Class XII
Unit VI Reproduction
- Chapter 1 : Sexual Reproduction in Flowering Plants
- Chapter 2 : Human Reproduction
- Chapter 3 : Reproductive Health
Unit VII Genetics And Evolution
- Chapter 4 : Principles of Inheritance and Variation
- Chapter 5 : Molecular Basis of Inheritance
- Chapter 6 : Evolution
Unit VIII Biology In Human Welfare
- Chapter 7 : Human Health and Disease
- Chapter 8 : Microbes in Human Welfare
Unit IX Biotechnology
- Chapter 9 : Biotechnology : Principles and Processes
- Chapter 10 : Biotechnology and its Applications
Unit X Ecology
- Chapter 11 : Organisms and Populations
- Chapter 12 : Ecosystem
- Chapter 13 : Biodiversity and Conservation
Unit | Title | Marks |
VI | Reproduction | 16 |
VII | Genetics and Evolution | 20 |
VIII | Biology and Human Welfare | 12 |
IX | Biotechnology and its Applications | 12 |
X | Ecology and Environment | 10 |
Total | 70 |
Unit-VI Reproduction
Chapter-2: Sexual Reproduction in Flowering Plants
Flower structure; development of male and female gametophytes; pollination – types, agencies and examples; out breeding devices; pollen-pistil interaction; double fertilization; post fertilization events – development of endosperm and embryo, development of seed and formation of fruit; special modes- apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation.
Chapter-3: Human Reproduction
Male and female reproductive systems; microscopic anatomy of testis and ovary; gametogenesis -spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development upto blastocyst formation, implantation; pregnancy and placenta formation (elementary idea); parturition (elementary idea); lactation (elementary idea).
Chapter-4: Reproductive Health
Need for reproductive health and prevention of Sexually Transmitted Diseases (STDs); birth control – need and methods, contraception and medical termination of pregnancy (MTP); amniocentesis; infertility and assisted reproductive technologies – IVF, ZIFT, GIFT (elementary idea for general awareness).
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 8 expression and regulation – lac operon; Genome, Human and rice genome projects; DNA fingerprinting.
Chapter-7: Evolution
Origin of life; biological evolution and evidences for biological evolution (paleontology, comparative anatomy, embryology and molecular evidences); 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.
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.
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.
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)
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.