CBSE Class 12th Syllabus of Biology 2018-19

Latest CBSE Class 12th Syllabus of Biology 2018-19

CBSE has released the CBSE Class 12 Syllabus of Biology (Code No. 044) for the session 2018-19. The new session has started and board updated the new syllabus. There is no change made in the syllabus and exam pattern.

The question paper will be of 70 marks. Practicals will be conducted of 30 marks.

The Question paper will consist of 26 questions. All questions would be compulsory. However, there is an internal choice in one question of 2 marks weightage, one question of 3 marks weightage and all the three questions of 5 marks weightage.

Unit

Marks
VI
Reproduction14
VII
Genetics and Evolution18
VIII
Biology and Human Welfare14
IX
Biotechnology and its Applications10
X
Ecology and Environment14

Total
70

Unit VI - Reproduction

• Chapter-1: Reproduction in Organisms
• Chapter-2: Sexual Reproduction in Flowering Plants
• Chapter-3: Human Reproduction
• Chapter-4: Reproductive Health

Unit VII - Genetics and Evolution

• Chapter-5: Principles of Inheritance and Variation
• Chapter-6: Molecular Basis of Inheritance
• Chapter-7: Evolution

Unit VIII - Biology and Human Welfare

• Chapter-8: Human Health and Diseases
• Chapter-9: Strategies for Enhancement in Food Production
• Chapter-10: Microbes in Human Welfare

Unit IX - Biotechnology and Its Applications

• Chapter-11: Biotechnology - Principles and processes
• Chapter-12: Biotechnology and its Application

Unit VI - Ecology and Environment

• Chapter-13: Organisms and Populations
• Chapter-14: Ecosystem
• Chapter-15: Biodiversity and its Conservation
• Chapter-16: Environmental Issues

Question Wise Break up

Type of Question
Mark per Question
Total No. of Questions
Total Marks
VSA
1
5
05
SA-I
2
5
10
SA-II
3
12
36
VBQ
4
1
04
LA
5
3
15
Total

26
70

Practicals: 30 Marks

Evaluation Scheme

One Major Experiment Part A (Expt. No. 5, 6, 8, 9)5 Marks
One Minor Experiment Part A (Expt. No. 2, 3, 4)4 Marks
Slide Preparation Part A (Expt. No. 1, 7)5 Marks
Spotting Part B7 Marks
Practical Record + Viva Voce4 Marks
Project Record + Viva Voce5 Marks
Total
30 Marks

List of Experiments

1. Study pollen germination on a slide.
2. Collect and study soil from at least two different sites and study them for texture, moisture content, pH and water holding capacity. Correlate with the kinds of plants found in them.
3. Collect water from two different water bodies around you and study them for pH, clarity and presence of any living organism.
4. Study the presence of suspended particulate matter in air at two widely different sites.
5. Study the plant population density by quadrat method.
6. Study the plant population frequency by quadrat method.
7. Prepare a temporary mount of onion root tip to study mitosis.
8. Study the effect of different temperatures and three different pH on the activity of salivary amylase on starch.
9. Isolate DNA from available plant material such as spinach, green pea seeds, papaya, etc.





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