ISC Class 12 Biology Syllabus 2024-25, Detailed Exam Syllabus

ISC Class 12 Biology Syllabus 2024-25

The ISC Class 12 Biology Syllabus for 2024-25 includes two papers: Paper I (Theory) and Paper II (Practical). Paper I focuses on theoretical concepts, while Paper II involves hands-on experiments, project work, and practical files. Below is the detailed breakdown.

Paper I: Theory (70 Marks)

Units and Weightage

Detailed Syllabus

1. Reproduction

• In Plants: Flower structure, gametophyte development, types of pollination, double fertilization, seed formation, apomixis, parthenocarpy, fruit classification (true and false), and seed dispersal.
• In Humans: Male and female reproductive systems, spermatogenesis, oogenesis, menstrual cycle, fertilization, embryo development, parturition, and lactation.
• Reproductive Health: Birth control methods, sexually transmitted diseases (STDs), infertility, and assisted reproductive technologies (IVF, GIFT, ICSI).

2. Genetics and Evolution

• Principles of Inheritance: Mendel’s laws, co-dominance, multiple alleles, polygenic inheritance, chromosomal theory of inheritance, sex determination, linkage, and sex-linked inheritance.
• Molecular Basis of Inheritance: Structure of DNA and RNA, DNA replication, transcription, translation, gene regulation (lac operon), Human Genome Project, and DNA fingerprinting.
• Evolution: Origin of life, evidence for biological evolution, natural selection, Hardy-Weinberg Principle, adaptive radiation, and human evolution.

3. Biology and Human Welfare

• Human Health and Diseases: Pathogens causing diseases (viruses, bacteria, protozoa), immunology, cancer, HIV/AIDS, drug and alcohol abuse.
• Microbes in Human Welfare: Use of microbes in food production, industrial applications, sewage treatment, biogas production, and as biocontrol agents and biofertilizers.

4. Biotechnology and its Applications

• Principles and Processes: Genetic engineering, recombinant DNA technology, and cloning vectors.
• Applications: Production of insulin and vaccines, gene therapy, stem cell technology, genetically modified organisms (GMOs), and biosafety concerns.

5. Ecology and Environment

• Organisms and Populations: Population interactions (mutualism, competition, predation), population attributes, and growth models.
• Ecosystems: Energy flow, ecological pyramids, and productivity.
• Biodiversity and Conservation: Types of biodiversity, reasons for biodiversity loss, in-situ and ex-situ conservation methods, hotspots, Ramsar sites, and Red Data Book.

Paper II: Practical Work – 15 Marks

Practical Assessment Breakdown

Practical Work Guidelines

1. Taxonomy: Dissect flowers from various families (Malvaceae, Leguminosae, Solanaceae, Liliaceae), draw floral diagrams, and identify floral characteristics.
2. Biochemical and Physiological Experiments: Study stomata distribution, soil composition, enzyme action on starch, and DNA isolation from plant material.
3. Slide Preparation: Prepare slides for pollen grain germination, ovary sections, hydrophyte stems, and seeds.
4. Spotting: Identify and comment on slides such as mammalian ovary and testis, germinating pollen, and ecological adaptations of plants and animals.

Project Work and Practical File

Students must complete one project related to any biological topic such as genetic disorders, gene therapy, human genome project, DNA fingerprinting, cancer, or AIDS. Projects should be creative, preferably handwritten, and must follow the structure:

1. Content
2. Introduction
3. Presentation (graphs, tables, diagrams, etc.)
4. Conclusion
5. Bibliography

ISC Class 12 Biology Syllabus 2024-25 PDF Download

Students can download the detailed ISC Class 12 Biology Syllabus 2024-25 in PDF format from the official CISCE website. This document includes comprehensive guidelines for both theory and practical work, along with suggested project topics and assessment criteria.

ISC Class 12 Biology Syllabus 2024-25-Click Here To Download PDF

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