CBSE Class 12 syllabus for Biology 2020-21: Check Revised 12th Biology Syllabus 

Biology is the most interesting and scoring subject which is further full of amazing facts and exclusive discoveries.CBSE Class 12 syllabus for Biology

Biology is also one of the important subjects in the science stream and obtaining good marks in this subject could help students land placement in good medical institutions and others. As it is important to score a good percentage in the exams, it is not only enough to study from the class 12 textbook.

Download Class 12 Biology Syllabus PDF 2020-21

CBSE Class 12 Deleted Portion of Syllabus for 2020-2021

Check subject-wise details of the deducted portion of CBSE Class 9 syllabus from the following links:

Class 6 Geography (Social Science) SyllabusCBSE Class 12 Chemistry Syllabus 2020-2021
CBSE Class 12 Biology Syllabus 2020-2021  CBSE Class 12 Physics Syllabus 2020-2021  
CBSE Class 12 Maths Syllabus 2020-2021  CBSE Class 12 Maths Deleted Syllabus Portion For 2020-21  
CBSE Syllabus 2020-21: Check Deleted Topics From 12th Physics Syllabus 2020-21  CBSE Class 12 Chemistry Deleted Syllabus Portion For 2020-21  
CBSE Class 12 Business Studies Syllabus 2020-21 (Revised): Download Pdf  CBSE Class 12 Accountancy Deleted Syllabus Portion For 2020-21  
Light, Shadows and Reflection Class 6 Notes Science Chapter 11Artificial Intelligence syllabus for Class 10 Students by School Connect Online
CBSE Class 8 AI SyllabusArtificial Intelligence Syllabus(AI) For Class 10 Students By School Connect Online  
CBSE Related Links
NCERT  Solutions Class 6 Social ScienceNCERT Solutions for class 12 Chemistry
NCERT Solutions for class 7 MathsStudy Physics  For Class 12
CBSE Syllabus Class 11CBSE Class 11 Physics Syllabus 2020-2021
CBSE Syllabus for all classesSample Papers For Class 9 Science
NCERT Solutions for all ClassesNCERT Solutions for class 10 Maths

CBSE class 12 Biology Notes: Chapter wise

Biology Notes For CBSE Class 12
Chapter 1 – Reproduction in Organism (Complete chapter removed from syllabus for 2020-21 academic session) 
Chapter 2 – Sexual Reproduction in Flowering Plants 
Chapter 3 – Human Reproduction 
Chapter 4 – Reproductive Health 
Chapter 5 – Principles of Inheritance and Variation 
Chapter 6 – Molecular Basis of Inheritance 
Chapter 7 – Evolution (Complete chapter removed from syllabus for 2020-21 academic session) 
Chapter 8 – Human Health and Disease 
Chapter 9 – Strategies for Enhancement in Food Production (Complete chapter removed from syllabus for 2020-21 academic session) 
Chapter 10 – Microbes in Human Welfare 
Chapter 11 – Biotechnology: Principles and Processes 
Chapter 12 – Biotechnology and its Applications 
Chapter 13 – Organisms and Populations 
Chapter 14 – Ecosystem (Complete chapter removed from syllabus for 2020-21 academic session) 
Chapter 15 – Biodiversity and Conservation 
Chapter 16 – Environmental Issues (Complete chapter removed from syllabus for 2020-21 academic session) 

Chapter 1 – Reproduction in Organism

Reproduction is a biological process wherein younger ones produced are identical to their parents. This phenomenon is significant in the continuity of the species, generation after generations. Typically, reproduction is observed in all living organisms from single-celled entities such as amoeba to multicellular entities of the most advanced forms such as human beings. Reproduction is carried out in two modes depending upon the participation of one or both parents.

Chapter 2 – Sexual Reproduction in Flowering Plants

Reproduction in plants includes both sexual and asexual means. Most of the flowering plants reproduce sexually ultimately producing flowers. Flowers are vital in the process of sexual reproduction. This is why flowers are also referred to as the reproductive part of a plant. The complete flower typically consists of:

  • Pedicel
  • Sepals
  • Petals
  • Calyx
  • Stamen- the male reproductive part comprises the anther and filament.
  • Pistil – the female reproductive part comprising three parts – stigma, style, and ovary.

Chapter 3 – Human Reproduction

Reproduction is the process of giving birth to their young ones which are identical to their parents. As we all are aware of, the process of reproduction in humans is sexual reproduction, which involves internal fertilization by sexual intercourse.

Chapter 4 – Reproductive Health

Reproductive Health is generally defined as healthy and proper/normal functioning of all the reproductive organs covering all reproductive aspects.

Chapter 5 – Principles of Inheritance and Variation

Heredity is a process of transferring traits/characteristics from parents to their offsprings which can be carried out either through the sexual or asexual mode of reproduction. These characteristics or traits are located in the form of genes on the chromosomes. Genes carry instructions which can have a similarity to one of its two parents.

Chapter 6 – Molecular Basis of Inheritance

DNA- Deoxyribonucleic Acid is considered as the molecule of inheritance as it carries genetic information in all living organisms. It is a long polymer chain of deoxyribonucleotides. Its length depends on the number of nucleotide base pairs present in it.

Chapter 7 – Evolution

Evolution is the study of the different forms of life, its characteristics and the changes over several generations. It is the scientific theory used by biologists to study the genetic variation in a population.

Chapter 8 – Human Health and Disease

In simple terms, Health can be defined as free from all diseases and infections. According to the World Health Organization (WHO), health is not only the absence of disease or illness. It is a state of an active and energetic condition including the physical, mental, and social well being. A balanced diet and regular exercise play an important role in maintaining a good health of an individual. There are many factors which affect health, such as:

  • Poorly balanced diet.
  • Genetic Disorders.
  • Stress, and anxiety.
  • Infection from pathogens.
  • Intake of unhealthy and unhygienic food.
  • Lack of exercise and other physical activities.

To maintain good health, an individual should include a healthy and balanced diet, maintain personal hygiene along with regular exercise and other physical activities. Everyone should be aware of the different types of diseases and their effects.

Chapter 9 – Strategies for Enhancement in Food Production

One of the major concerns in recent times has been the issue of population explosion which in turn has necessitated the enhancement of food production. For this reason, different biological techniques and principles are being developed.

Chapter 10 – Microbes in Human Welfare

Microbes or microorganisms form a significant component of the biological systems on the earth. They are ubiquitous, present everywhere – in the soil, around us, in water, the air we breathe, and both in and on our body. Also, microbes are present on other animals and plants. They are so tiny, microscopic in nature, varying in shape and size. They can only be seen through the microscope. The different types of microbes are:

  • Algae
  • Bacteria
  • Fungi
  • Protozoa
  • Virus

Chapter 11 – Biotechnology: Principles and Processes

Biotechnology is defined as the broad area of biology which uses both the technology and the application of living organisms and their components to develop, modify and produce useful products for human welfare. The term ‘Biotechnology’ was coined in the year 1919 by an agricultural engineer Karoly Ereky, hence he is called as the father of Biotechnology.

Chapter 12 – Biotechnology and its Applications

Biotechnology is defined as the broad area of biology which uses both the technology and the application of living organisms and their components to develop, modify and to produce a useful product for human welfare. The term ‘Biotechnology’ was coined in the year 1919 by an agricultural engineer Karoly Ereky, hence he is called as the father of Biotechnology.

Chapter 13 – Organisms and Populations

Ecology is the branch of biology which mainly involves the study about the interactions among organisms and their environment. Basically, there are four levels of biological organization.

  • Organisms.
  • Populations.
  • Communities.
  • Biomes.

Chapter 14 – Ecosystem

Ecosystem is a biological community where the living and nonliving components interact with each other and their physical environment. It is the functional unit of nature and varies greatly in size.

Chapter 15 – Biodiversity and Conservation

Biodiversity refers to a variety of plant and animal life on earth. The term ‘biodiversity’ was popularized by the sociobiologist Edward Wilson. Biodiversity is of three types:

  • Genetic diversity
  • Species diversity
  • Ecological diversity

Chapter 16 – Environmental Issues

With the increase in the human population, there is a lot of demand for food, clothing, housing, fuels, vehicles etc. All these demands are exerting a lot of pressure on land, water, air and other natural resources which leads to pollution, environmental degradation, biodiversity, and other environmental issues.

Other National and International Level Olympiads

AI OlympiadInternational Artificial Intelligence Olympiad 2020-21
Coding OlympiadInternational Coding Olympiad 2020-21
IMOInternational Maths Olympiad 2020-21
ISOInternational Science Olympiad 2020-21
KVPYKishore Vaigyanik Protsahan Yojana
Artificial Intelligence OlympiadInternational Artificial Intelligence Olympiad
Maths OlympiadInternational Maths Olympiad
Science OlympiadInternational Science Olympiad
Coding OlympiadInternational Coding Olympiad

Maths Olympiad  

ClassSyllabusClassSyllabus
Class 1Maths Olympiad Syllabus Class 1Class 7Maths Olympiad Syllabus Class 7
Class 2Maths Olympiad Syllabus Class 2Class 8Maths Olympiad Syllabus Class 8
Class 3Maths Olympiad Syllabus Class 3Class 9Maths Olympiad Syllabus Class 9
Class 4Maths Olympiad Syllabus Class 4Class 10Maths Olympiad Syllabus Class 10
Class 5Maths Olympiad Syllabus Class 5Class 11Maths Olympiad Syllabus Class 11
Class 6Maths Olympiad Syllabus Class 6Class 12Maths Olympiad Syllabus Class 12

Learn with best notes,free videos,practice questions and mock tests with School Connect Online for free demo click here

School Connect Online

By School Connect Online

School Connect Online is an Integrated Learning Program for Academic Institution,and supported and mentored by StartUp Oasis,an inititive of CIIE IIM-Ahmedabad. Please visit school.schoolconnectonline.com

4 thoughts on “CBSE Class 12 syllabus for Biology 2020-21: Check Revised 12th Biology Syllabus”

Leave a Reply