CBSE Class 12 Biology Syllabus 2020
CBSE Class 12 Biology Syllabus 2020 - Central Board of Secondary Education has released the CBSE 12th Biology syllabus on the official website. Students must refer to the CBSE Class 12 Biology syllabus 2020 to know the important topics and marking scheme per subject. The CBSE Class 12th exams are scheduled to be conducted from February 15 to April 6, 2020, tentatively. CBSE practical exams will be conducted from January 1 to February 7, 2020. Therefore, students must buck up and start preparing for the CBSE Class 12th exams 2020. The total marks for the theory and practical exams will be 70 and 30 respectively. Referring to the CBSE Class 12 Biology syllabus 2020 will let the students plan their studies accordingly. Read this article to know the CBSE Class 12 Biology Syllabus 2020 and know the exam pattern and preparation tips.
Latest: Know the date of CBSE Board 12th Result 2020
CBSE Class 12 Biology Syllabus 2020 - Exam Pattern
Students must go through the exam pattern of CBSE 12th Biology. This will let them know the marking scheme and help then plan their studies accordingly.
Exam Pattern of CBSE Class 12 Biology
Genetics and Evolution
Biology and Human Welfare
Biotechnology and its Applications
Ecology and Environment
CBSE Class 12 Biology Syllabus 2020
Students can go through the CBSE Class 12 Biology syllabus from the table provided below. They must prepare for the exam after referring to the important topics and marking scheme. Biology should not be ignored as this is the subject which will let you score very high if prepared with the right strategy. Go through the CBSE Class 12 Biology syllabus 2020 below.
CBSE 12th Biology Syllabus 2020
Unit VI - Reproduction
Chapter 1 - Reproduction in organisms
Reproduction, Modes of reproduction - asexual and sexual reproduction, vegetative propagation in plants, etc.
Chapter 2 - Sexual Reproduction in Flowering Plants
Post-Fertilization events - development of endosperm and embryo, outbreeding devices, double fertilization; post-fertilization events -
development of endosperm and embryo, etc.
Chapter 3 - Human Reproduction
Menstrual cycle; fertilisation, microscopic anatomy of testis and ovary, parturition (elementary
idea); lactation (elementary idea), etc.
Chapter 4 - Reproductive Health
IVF, ZIFT, GIFT, amniocentesis, contraception and medical termination of pregnancy, etc.
Unit VII - Genetics and Evolution
Chapter 5 - Principles of Inheritance And Variation
Multiple alleles and inheritance of blood groups, Sex determination - in
humans, birds and honey bee, haemophilia, colour
Chapter 6 - Molecular Basis of Inheritance
Genetic code, Translation, gene expression and regulation, Structure of DNA and RNA, etc.
Chapter 7 - Evolution
Mechanism of evolution - the variation, comparative anatomy, Gene flow and genetic drift, human evolution, etc.
Unit - VIII
Chapter 8- Human Health and Disease
Pneumonia, the common cold, Basic concepts of immunology - vaccines; cancer, drug and alcohol abuse, etc.
Chapter 9 - Strategies for Enhancement in Food Production
Tissue culture, single-cell protein, Plant breeding, Apiculture and Animal husbandry, etc
Chapter 10 - Microbes in Human Welfare
Antibiotics; production, sewage treatment, energy generation, etc.
Unit IX - Biotechnology and Its Applications
Chapter 11 - Biotechnology: Principles and Processes
Genetic Engineering (Recombinant DNA Technology).
Chapter 12 - Biotechnology and its Applications
Gene therapy; genetically modified organisms, transgenic animals; biosafety issues, etc.
Unit X - Ecology and Environment
Chapter 13 - Organisms And Population
Mutualism, competition, predation, birth rate and death rate, age distribution, etc.
Chapter 14 - Ecosystem
Seed dispersal, oxygen release, energy flow; pyramids of number, energy; nutrient cycles
Chapter 15 - Biodiversity and Conservation
Red Data Book, biosphere reserves, patterns, importance; loss of biodiversity, etc.
Chapter 16 - Environmental Issues
Greenhouse effect and climate change impact, ozone layer depletion; deforestation, Air pollution and its control, etc.
CBSE Class 12 Biology Syllabus 2020 - Practicals
Students must go through the practical exam pattern of CBSE 12th Biology. Along with the CBSE Class 12 Biology syllabus 2020, they must refer to the practical syllabus and marking scheme which is provided below.
CBSE 12th Practical Exam Pattern 2020
One Major Experiment
One Minor Experiment
Practical Record+Viva Voce
Project Record + Viva Voce
CBSE Class 12 Biology Syllabus 2020 - Question Paper Design
In addition to CBSE Class 12 Biology syllabus 2020, students can go through the question paper design in the table provided below. This will let them have a glimpse of the number of questions asked, weightage, etc.
CBSE 12th Biology Question Paper Design
Typology of Questions
Very Short Answer (VSA)
Short Answer-I (SA-I)
Short Answer-II (SA-II)
Long Answer (LA)
1) Remembering- (Knowledge-based simple recall questions,
to know specific facts, terms, concepts, principles, or theories, Identify, define,
or recite, information)
2) Understanding- (Comprehension -To be familiar with the meaning and to understand conceptually, interpret, compare, contrast, explain, paraphrase
3) Application(Use abstract information in a concrete situation, to apply knowledge to new situations, Use given content to interpret a situation, provide an example,
or solve a problem)
4) High Order Thinking Skills (Analysis & Synthesis-Classify, Compare, Contrast, or differentiate between different pieces of information, Organize and/or integrate unique
pieces of information from a variety of sources)
5)Evaluation-(Appraise, judge, and/or justify the value or worth of a decision or outcome, or to predict outcomes based on values)
Also, read Courses after 12th
CBSE Class 12 Biology Preparation Tips 2020
Students must have started preparing for the CBSE Class 12th as the exams are near. Therefore they must implement some simple but effective tips and tricks to score well in the same. Coming to Biology, it is a subject which will help you score very well in case you take it seriously and give your best. Go through some of the best preparation tips for CBSE 12th Biology.
Complete the CBSE Class 12 Biology syllabus 2020 as soon as possible so that you can give maximum time for revision.
Students must refer to the CBSE class 12 time table 2020 and plan their studies accordingly.
Do not mug up the theories of Biology, instead try to understand the meaning of the same and make personal notes. These notes will help you to revise at last moment.
After completing the CBSE Class 12 Biology syllabus 2020, students must solve the CBSE Class 12 question papers. This will help them to know the exam pattern, marking scheme and important topics.
Dedicate maximum time for the revision and do not ignore any doubts. Clear them right away. Seek help from others in case of confusion. Also, do not stress about the board instead give your best and score well in CBSE class 12 result 2020.
Frequently Asked Question (FAQs) - CBSE Class 12 Biology Syllabus 2020
Question: What is the passing marks in CBSE Class 12th exams?
Students must score at least 33 per cent marks per subject in order to pass the CBSE Class 12 exams.
Question: When will the CBSE Class 12 result 2020 be declared?
Central Board of Secondary Education will declare the CBSE 12th result 2020 in the first week of May 2020.
Question: Will the exam centre for the CBSE Class 12 practical exams be different in the year 2020?
NO, as per the recent notification, CBSE Class 12 practical exams will be held in the respective schools of the students.
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Questions related to CBSE Class 12th
Latest cbse class 12th syllabus updates
I am providing you a link from which you access to the all syllabus and you can download it for every subjects like physics , chemistry ,maths, language ,business and other subjects.
So look for the post for which you want the syllabus .
I just want to ask that if a student of cbse class 12th 2020 predicted the score of chemistry -70/100 biology 79/100 and in physics ge predicted 21/70 so CBSE can give him gracing by seeing others subject marks???
No, your marks from other subjects will not have any impact on the marks in other subject. However, it is being noticed that the physics paper of 2020 was a bit on the tougher side and whenever such things happens, CBSE do lenient marking so if you are sure of 21 marks, you might as well expect passing marks.
Hope this helps. Thank you.
I can get below 75% in 12th 2019, then i go for improvement exams for all 5 subjects in 2020, but i give only 1 subject exam due to some personal reasons and absent in other 4,, then I eligible to give improvement exams in 2021.
Hello Aspirant !
As per the CBSE , improvement exam. can be taken only in the successive year of passing Class XII exams
So , you cannot appear for the exam in 2021.
For more information you can visit :
Hope it helps !
may i know the exam date of history 315 sr.secondary
After the cancellation of the open board 12th class examination till 31st March, a new date sheet has been announced by the National institute for Open Schooling on its official website. According to it the exam date for History 315 for class 12 is 9th April
12 compartment student take admission in any college of b.tech. after complete compartment exam.
actually it is not possible to take admission in any college of BTech after just completing your 10 + 2 compartment exam. You have to give the exam of of any joint entrance examination for engineering or similar like this. You have to pass on this examination and if you have a good rank you can take admission in good colleges. Don't worry if you have not a good rank you can take admission in private colleges also with low ranks also.
Hope this will help you.