Biology Syllabus Bihar Board 12th (BSEB)

Bihar Board 12th Biology Syllabus (BSEB)
Biology Syllabus 12th by Pratap Sanjay Sir

➥ The syllabus for Bihar Board Class 12th Biology covers key topics required for the 2025 examination.

Exam Pattern

Theory: 70 Marks (35 Objective + 35 Subjective)

Practical: 30 Marks

  1. Objective: 35 Questions out of 70 (35 x 1 = 35 Marks)
  2. Subjective:
    1. Short Answer Type Questions: Attempt 10 out of 20 (10 x 2 = 20 Marks)
    2. Long Answer Type Questions: Attempt 3 out of 6 (3 x 5 = 15 Marks)

Unit-Wise Distribution of Marks
➯ Biology Units and Marks
Unit Topics Marks
Unit I: Reproduction
  1. Sexual Reproduction in Flowering Plants
  2. Human Reproduction
  3. Reproductive Health
 6
Unit II: Genetics and Evolution
  1. Principles of Inheritance and Variation
  2. Molecular Basis of Inheritance
  3. Evolution
 18
Unit III: Biology and Human Welfare
  1. Human Health and Disease
  2. Microbes in Human Welfare
 18
Unit IV: Biotechnology
  1. Biotechnology: Principles and Processes
  2. Biotechnology and Its Applications
 18
Unit V: Ecology
  1. Organisms and Populations
  2. Ecosystem
  3. Biodiversity and Conservation
 10