CBSE Class 12 Biology Question Papers & Mock Tests
Build Board-pattern Class 12 Biology tests that grade themselves the moment students submit.
CBSE Class 12 Biology is a 70-mark Board theory paper with 30 marks of practical assessment, covering genetics, reproduction, evolution, biotechnology and ecology. Teachers can use MegaExams to set chapter tests, pre-Board mocks and full-length papers aligned to the latest NCERT syllabus and CBSE pattern.
Conducted by
CBSE (Central Board of Secondary Education)
Mode
Offline pen-and-paper Board exam
Subjects
Biology
Marking
70 marks theory + 30 marks practical
CBSE Class 12 Biology subjects & question papers
Reproduction
Sexual reproduction in flowering plants, human reproduction and reproductive health.
Genetics & Evolution
Principles of inheritance and variation, molecular basis of inheritance and evolution.
Biology in Human Welfare
Human health and disease, microbes in human welfare and applications in food and medicine.
Biotechnology & Ecology
Biotechnology principles and applications, organisms and populations, ecosystems and biodiversity.
Build your CBSE Class 12 Biology question bank in minutes
Paste a topic and generate exam-ready questions with AI, or upload your own. Auto-grade with negative marking, share via a link, and rank students city-wide.
Why teachers use MegaExams for CBSE Class 12 Biology
AI-generated mock papers
Generate Class 12 Biology questions by chapter, including diagram-based and assertion-reason items, and build a 70-mark Board-pattern paper aligned to NCERT in minutes.
AI Question Generator →Instant grading
MCQs, assertion-reason and case-based questions are auto-graded on submission, so chapter and pre-Board tests are scored instantly.
Instant Grading →Rankings
Chapter-wise rankings show whether genetics or ecology needs more revision before the Board exam.
Analytics & Rankings →Share & sell
Bundle your Biology mocks into a pre-Board test series and share a parent-shareable scorecard with each student after every test.
Courses & Test Series →Frequently asked questions
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