CBSE Class 12 Biology Syllabus 2024 2025

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.

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