Manipur State Board has published subject wise syllabus for this year Class 12 students in its official portal cohsem.nic.in Here we have published Class 12 COHSEM Syllabus 2024-25 for Biology subject. For more information regarding Council of Higher Secondary Education (COHSEM) Class 12 2024 Exam Date, Exam Pattern, Time, Date, How to prepare follow our website.
Board |
Council Of Higher Secondary Education (COHSEM) |
Topic |
Syllabus |
Subject |
Biology |
How to download Manipur Class 12 Syllabus 2024-25 – Biology?
- Step 1: Open your browser
- Step 2: Type cohsem.nic.in
- Step 3: Go to the Syllabus link active on the left panel of the home page of the website (Syllabus for Classes XI – XII).
- Step 4: Click on Class 12 Syllabus link 2024
Class 12 Biology
Theory
Unit | Title | Marks |
VI | Reproduction in Organisms | 14 |
VII | Genetics and Evolution | 18 |
VIII | Biology and Human welfare | 14 |
IX | Biotechnology | 10 |
X | Ecology | 14 |
Total | 70 |
Unit VI: Reproduction
Chapter 2: Sexual Reproduction in flowering Plants
Flower; Pre-fertilisation: Structures and Events; Pollination-types, agencies and examples; Outbreeding devices; Pollen-pistil interaction; Double fertilization; Post fertilisation: structures and Events; Development of endosperm & embryo; Development of seed and formation of seed; Fruit formation; Parthenocarpy, apomixis and polyembryony.
Chapter 3: Human Reproduction
Male and female Reproductive systems; Gametogenesis-spermatogenesis & oogenesis; Menstrual cycle; Fertilization and Implantation; Pregnancy and Embryonic development; Parturition and Lactation.
Chapter 4: Reproductive Health
Reproductive Health – problems and strategies; Population Explosion and Birth control; Medical termination of Pregnancy; Sexually Transmitted Diseases; Infertility and Assisted reproductive technologies- assisted reproductive technologies – IVF, ZIFT, GIFT (elementary idea for general awareness).
UNIT VII: Genetics and Evolution
Chapter 5: Principles of Inheritance and Variation
Mendel’s Laws of Inheritance; Deviations from Mendelism: Incomplete dominance, Co-dominance, Multiple allelism; Chromosomal theory of Inheritance; Linkage and Recombination; Polygenic Inheritance; Pleiotropy; Sex Determination- in birds, humans and honey bee; Mutation; Pedigree analysis; Genetic Disorders: Mendelian disorders –Colour blindness, Haemophilia, sickle-cell anaemia, phenylketonuria, Thalassemia; Chromosomal Disorders – Down’s syndrome, klinefelter’s syndrome, Turner’s syndrome.
Chapter 6: Molecular Basis of Inheritance
Structure of DNA and RNA; Packaging of DNA; The search for genetic material; RNA world; DNA Replication; Transcription; Genetic code; Translation; Regulation of Gene Expression; Human genome Project; DNA fingerprinting.
Chapter 7: Evolution
Origin of Life; Evolution of Life Forms; Evidences for Evolution; Adaptive radiation; Biological Evolution; Mechanism of Evolution; Hardy- Weinberg Principle; A brief account of evolution; Origin and Evolution of Man.
UNIT VIII: Biology in Human Welfare
Chapter 8: Human Health and Disease
Common Diseases in Humans (typhoid, pneumonia, commoncold, malaria, amoebiasis, ascariasis, filariasis, ring worm);
Immunity (Innate, Acquired, Active and passive Immunity, Vaccination and Immunisation, Allergy, Auto Immunity); Immune System in the body;
AIDS, Cancer, Drugs and Alcohol Abuse.
Chapter 10: Microbes in Human welfare
Microbes in Household Products, Industrial Products, Sewage Treatment, and Production of biogas;
Microbes as Biocontrol agents and Bio fertilisers.
UNIT IX: Biotechnology
Chapter 11: Biotechnology: Principles and Processes
Principles of Biotechnology; Tools of Recombinant DNA Technology; Process of Recombinant DNA Technology.
Chapter 12: Biotechnology and Its Application
Biotechnological Applications in agriculture (GMO and Bt cotton) and medicine (genetically engineered insulin, gene therapy, molecular diagnosis); Transgenic animals; Ethical Issues.
Unit X: Ecology
Chapter 13: Organisms and Populations
Populations: Population Attributes; Population Growth, Life history variation; Population Interactions – Predation, Competition, Parasitism, Commenselism and Mutualism.
Chapter 14: Ecosystem
Structure and Function; Productivity; Decomposition; Energy Flow; Ecological Pyramids;
Chapter 15: Biodiversity and Conservation
Biodiversity: Patterns of Biodiversity; Importance of Species diversity to the Ecosystem; Loss of Biodiversity; Biodiversity Conservation.
Practical
1 | Experiments and spotting | 20 Marks |
2 | Record of one investigatory project and Viva based on the project | 5 Marks |
3 | Class record and Viva based on experiment. | 5 Marks |
Total | 30 Marks |
A.) List of Experiments
1.) Study of pollen germination on a slide.
2.) Collect water from two different water bodies around you and study them for pH, clarity and presence of any living organisms.
3.) Study of plant population density by quadrat method.
4.) Study of plant population frequency by quadrat method.
5.) Prepare a temporary mount of onion root tip to study mitosis.
B.) Study/observation of the following (Spotting)
1.) Flowers adapted to pollination by different agencies (wind, insects).
2.) Pollen germination on stigma through a permanent slide.
3.) Identification of stages of gamete development i.e. T.S. testis and T.S. ovary through permanent slide. (from any mammal)
4.) Meiosis in onion bud cell or grasshopper testis through permanent slide.
5.) T.S. of blastula through permanent slide.
6.) Mendelian inheritance using seeds of different colour/size of any plant.
7.) Prepared pediqree charts of genetic traits such as rolling of tongue, blood groups, widow’s peak, colour blindness.
8.) Exercise on controlled pollinationEmasculation, tagging and bagging.
9.) Identification of common disease causing organism like Ascaris, Entamoeba, Plasmodium, Ringworm through permanent slides or specimens. Comment on symptoms of diseases that they cause.
10.) Two plants and two animals found in xerophytic conditions. Comment upon their morphological adaptations.
11.) Plants and animals found in aquatic conditions. Comment upon their morphological adaptations.
Design of question paper
Here on this page we have uploaded Biology subject syllabus 2024. You can download the complete syllabus from the link mentioned below: