Biology deleted syllabus class 12

Biology deleted syllabus class 12 pdf: For students preparing for CBSE class 12, 11, 10 or any board and university exam it is important to be updated with the latest changes and updates released by the board. Biology deleted syllabus class 12 is one of them.

The board has significantly reduced the class 12 syllabus to reduce the exam stress of the students.

Biology deleted syllabus class 12

In this post we have added the biology class 12 deleted syllabus unit and chapter wise that also cover the topic in detail so that students do not face any trouble in finding the topics. 

Biology deleted syllabus class 12 information

  • Title –deleted syllabus of class 12 biology cbse 2020 21
  • Format– PDF
  • Size– mb
  • Page- 04
  • Subject– biology
  • Language– English

Deleted syllabus of biology class 12

Under Unit-VI Reproduction

Chapter-1: Reproduction in Organism

Reproduction, a characteristic feature of all organisms for continuation of species; modes of reproduction – asexual and sexual reproduction; asexual reproduction – binary fission, sporulation, budding, gemmule formation, fragmentation; vegetative propagation in plants.

Under Unit-VII Genetics and Evolution

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.

Under Unit-VIII Biology and Human Welfare

Chapter 9: Strategies for Enhancement in Food Production

Animal husbandry, Plant breeding, tissue culture, single cell protein.

Under Unit-X Ecology and Environment

Chapter-14: Ecosystem

Ecosystems: Patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy; nutrient cycles (carbon and phosphorous); ecological succession; ecological services – carbon fixation, pollination, seed dispersal, oxygen release (in brief).

Chapter 16: Environmental Issues

Air pollution and its control; water pollution and its control; agrochemicals and their effects; solid waste management; radioactive waste management; greenhouse effect and climate change impact and mitigation; ozone layer depletion; deforestation; exemplifying case study as success story addressing environmental issue(s).

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