Tamil Nadu Board of Secondary EducationHSC Science Class 12th
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Zoology Class 12th HSC Science Tamil Nadu Board of Secondary Education Topics and Syllabus

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Tamil Nadu Board of Secondary Education Syllabus For Class 12th Zoology: Knowing the Syllabus is very important for the students of Class 12th. Shaalaa has also provided a list of topics that every student needs to understand.

The Tamil Nadu Board of Secondary Education Class 12th Zoology syllabus for the academic year 2021-2022 is based on the Board's guidelines. Students should read the Class 12th Zoology Syllabus to learn about the subject's subjects and subtopics.

Students will discover the unit names, chapters under each unit, and subtopics under each chapter in the Tamil Nadu Board of Secondary Education Class 12th Zoology Syllabus pdf 2021-2022. They will also receive a complete practical syllabus for Class 12th Zoology in addition to this.

Academic year:

Tamil Nadu Board of Secondary Education Class 12th Zoology Revised Syllabus

Tamil Nadu Board of Secondary Education Class 12th Zoology and their Unit wise marks distribution

Tamil Nadu Board of Secondary Education Class 12th Zoology Course Structure 2021-2022 With Marking Scheme

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Syllabus

1 Reproduction in Organisms
  • Modes of Reproduction 

    Modes of Reproduction - Asexual and Sexual Reproduction

  • Asexual Reproduction 
    • Binary Fission, Sporulation, Budding, Gemmule Formation and Fragmentation
    • Cell division in unicellular organism - Budding in yeast, Binary fission in Amoeba
    • Asexual reproductive structures - Zoospores of Chlamydomonas, Conidia of Penicillium, Buds in Hydra, Gemmules in sponge
    • Vegetative Propagation in Plants (angiosperms)
  • Sexual Reproduction 
2 Human Reproduction
3 Reproductive Health
4 Principles of Inheritance and Variation
5 Molecular Genetics
6 Evolution
  • Origin of Life (Theories) 
    • Origin of Life (Theories)
    1. Theory of special creation
    2. Cosmozoic theory/Theory of Panspermia
    3. Theory of spontaneous generation (Abiogenesis)
    4. Theory of biogenesis
  • Geological Time Scale 
  • Biological Evolution 
    • Biological Evolution and Evidences for Biological Evolution (Paleontology, Comparative Anatomy, Embryology and Molecular Evidences)
    • Formation of protobionts
    • Experimental approach to the origin of life
  • Evidences for Biological Evolution 
    • Paleontological evidences
    • Evidences from comparative anatomy
    1. Homologous structures
    2. Analogous structures
    3. Vestigial organs 
    4. Connecting link
    5. Atavistic organs
    • Embryological evidences
    1. Molecular evidences
  • Theories of Biological Evolution 
    • Lamarck’s theory
    • The main objection to Lamarckism 
    • Neo-Lamarckism
    • Darwin’s theory of Natural Selection
    1. Objections to Darwinism
    2. Neo Darwinism 
    • Mutation theory
    1. Salient features of Mutation Theory
    • Modern synthetic theory
    • Evolution by anthropogenic sources
    1. Natural Selection (Industrial melanism)
    • Adaptive Radiation 
    1. Darwin’s finches
  • Mechanism of Organic Evolution 
    • Mutations
    • Gene recombination
    • Gene flow 
    • Genetic drift
    • Natural selection
    • Type of Natural selection: Stabilizing selection, Directional selection, and Disruptive Natural selection
    • Isolation
    • Speciation
  • Hardy Weinberg’s Principle 
  • Human Evolution 
    • Human Evolution
    • Human ancestors
    1. Australopithecus
    2. Homo habilis
    3. Homo erectus
    4. Homo erectus
    5. Neanderthal man 
    6. Cro-Magnon
    • Homo sapiens sapiens (modern man)
  • Isolating Mechanism 
  • Speciation 
    • Speciation
    • Modes to form New species
    1. Intraspecific Speciation: Allopatric speciation and Sympatric speciation
    2. Interspecific Speciation: Hybridisation
  • Extinction of Animals 
7 Human Health and Diseases
8 Immunology
9 Microbes in Human Welfare
10 Applications of Biotechnology
11 Organisms and Populations
12 Biodiversity and Its Conservation
13 Environmental Issues
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