CBSE Deleted Syllabus For Class 12 Biology 2021

 

CBSE Deleted Syllabus For Class 12 Biology


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).

DELETED PORTIONS CLASS XII: PRACTICAL 

A: List of Experiments 
1. Study the presence of suspended particulate matter in air at two widely different sites. 
2. Study the plant population density by quadrat method. 3. Study the plant population frequency by quadrat method. 
B. Study/Observer of the following (spotting) 
1. Pollen germination on stigma through a permanent slide or scanning electron micrograph. 
2. Mendelian inheritance using seeds of different colour/sizes of any plant. 
3. Controlled pollination - emasculation, tagging and bagging.

Comments

Post a Comment

Popular posts from this blog

Top Interpersonal Skills Courses and Some of the popular courses for Communication Skills are free

 Effective communication skills are fundamental to success in many aspects of life. Many jobs require strong communication skills. People with good communication skills also usually enjoy better interpersonal relationships with friends and family. Effective communication is therefore a key interpersonal skill and learning how to improve your communication has many benefits. However, many people find it difficult to know where to start. Some of the popular courses for Communication Skills are free: Effective Communication: Writing, Design, and Presentation Specialization - Coursera-13 hours How to speak to anyone & be fearless - in less than 55 min - Udemy - 1 hour Business English Communication Skills Specialization- Coursera - 6 months Improve Your English Communication Skills - Coursera- 5 months Effective communications skills for business- Udemy - 37 minutes Communication Skills Course Syllabus Verbal communication Non-verbal communication Effective Communication Communicat...
Read more

Top 10 scholarship programs which are providing degree with scholarship for E-GAMER

Top 10 scholarship programs which are providing degree with scholarship  Colleges have taken notice and now offer e-sports scholarships alongside athletic ones. The concept is relatively new, but there are already 175 U.S. colleges that offer varsity e-sports programs recognized by the National Association of Collegiate E-sports (NACE). The e-sports world is currently making strides to achieve player equality and gain widespread acceptance. Meanwhile, the first few classes of e-sports scholars are working towards their degrees and will have the opportunity to make their career in video games. Top 10 scholarship programs which are providing degree with scholarship . 1. University of California at Irvine (Irvine, CA) : Since 2016, UCI’s e-sports program has trained varsity teams in League of Legends and overwatch. Varsity scholarships are up to $6,000 and junior varsity scholarships go up to $1,000. Teams benefit from the guidance of coaches, managers, analysts, an exercise physiolo...
Read more