Biology is important for a Science student of Class 12 Maharashtra Board, because it helps us to understand the study of life and tells us about the natural world. The syllabus of Class 12 Biology includes topics like microbes in human, welfare, reproduction, etc.
The chapter wise weightage for HSC Biology Maharashtra Board helps the students to know, on which topic to concentrate more. This helps them to score good marks in their HSC exam. The understanding of Maharashtra State Board 12th Biology syllabus is must, so that the students can make a preparation plan to clear the Class 12 Board exam with good grades.
Biology is an interesting subject, which is all about life, its composition, development and about nature, environment, experiments, inventions and lot more.
Chapter wise Weightage for HSC Biology
| Types of Question | Marks | Marks with option | Percentage |
| Objective | 14 | 14 | 20 |
| Short Answers | 42 | 56 | 60 |
| Brief Answers | 14 | 28 | 20 |
| Total | 70 | 98 | 100 |
Distribution of Marks According to Units
| Sl No | Unit | Marks without option | Marks with option |
| 1 | Genetic Basis of Inheritance | 08 | 12 |
| 2 | Gene: It’s Nature, Expression and Regulation | 08 | 12 |
| 3 | Biotechnology: Process and Application | 07 | 09 |
| 4 | Enhancement in Food Production | 07 | 09 |
| 5 | Microbes in Human Welfare | 03 | 05 |
| 6 | Photosynthesis | 07 | 09 |
| 7 | Respiration | 07 | 09 |
| 8 | Reproduction in Plants | 07 | 09 |
| 9 | Organisms and Environment – I | 07 | 05 |
| 10 | Origin and Evolution of Life | 07 | 09 |
| 11 | Chromosomal Basis of Inheritance | 07 | 09 |
| 12 | Genetic Engineering and Genomics | 03 | 05 |
| 13 | Human Health and Diseases | 05 | 07 |
| 14 | Animal Husbandry | 05 | 07 |
| 15 | Circulation | 10 | 14 |
| 16 | Excretion and Osmoregulation | 10 | 14 |
| 17 | Control and Co-ordination | 10 | 14 |
| 18 | Human Reproduction | 07 | 09 |
| 19 | Organisms and
Environment – II |
03 | 05 |
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