CBSE Class 12 Biology Syllabus 2020

Unit

Title

Marks

VI

Reproduction

14

VII

Genetics and Evolution

18

VIII

Biology and Human Welfare

14

IX

Biotechnology and its Applications

10

X

Ecology and Environment

14

Total

70

Unit

Chapters

Important Topics

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

Blindness, etc.

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.

Evaluation Scheme

Marking Scheme

One Major Experiment

5 Marks

One Minor Experiment

4 Marks

Slide Preparation

5 Marks

Spotting

7 Marks

Practical Record+Viva Voce

4 Marks

Project Record + Viva Voce

5 Marks

Total

30Marks

Typology of Questions

Very Short Answer (VSA)

(1 mark)

Short Answer-I (SA-I)

(2 marks)

Short Answer-II (SA-II)

(3 marks)

Long Answer (LA)

(5 marks)

Total Marks

%

Weightage

1) Remembering- (Knowledge-based simple recall questions,

to know specific facts, terms, concepts, principles, or theories, Identify, define,

or recite, information)

2

1

1

-

7

10%

2) Understanding- (Comprehension -To be familiar with the meaning and to understand conceptually, interpret, compare, contrast, explain, paraphrase

information)

-

2

4

1

21

30%

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)

-

2

4

1

21

30%

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)

2

1

1

1

12

17%

5)Evaluation-(Appraise, judge, and/or justify the value or worth of a decision or outcome, or to predict outcomes based on values)

1

1

2

-

9

13%

Total

5x1=5

7x2=14

12x3=36

3x5=15

70(27)

100%