13 chapters105 topics525 quiz questions665 flashcards105 answer frames148 likely questions1 model paper
Chapter
Topics
Likely Qs
Prep
Sexual reproduction in flowering plants
9
11
Ready
Human reproduction
7
11
Ready
Reproductive health
6
11
Ready
Principles of inheritance and variation
9
12
Ready
Molecular basis of inheritance
9
12
Ready
Evolution
9
12
Ready
Human health and diseases
9
12
Ready
Microbes in human welfare
7
11
Ready
Biotechnology: principles and processes
8
11
Ready
Biotechnology and its applications
9
12
Ready
Organisms and populations
8
11
Ready
Ecosystem
7
11
Ready
Biodiversity and its conservation
8
11
Ready
Unit weightage: Reproduction 16, Genetics and evolution 20, Biology and human welfare 12, Biotechnology 12, Ecology 10. Environmental issues is taught in school but not asked in the board theory paper. The practical exam (30 marks) is separate.
How often each chapter appears in the board's past papers is added when the past-paper study is done.
Model paper33 questions · 70 marks · 3 hours. Locks on 31 Jan 2027.Open itSourcesBuilt from the CBSE Class XII Biology curriculum for 2026-27, the 2026-27 sample question paper and the NCERT Class XII Biology textbook. Your school may teach the chapters in a different order. · NCERT, Biology: Textbook for Class XII · NCERT, Exemplar Problems: Biology, Class XII · CBSE, Sample Question Paper and Marking Scheme: Biology, Class XII (2026-27) · K.N. Bhatia and M.P. Tyagi, Trueman's Elementary Biology, Volume IICheckedWritten from the CBSE 2026-27 curriculum and sample question paper. Each batch of chapters was written by one agent and checked by a second agent against the NCERT 2026-27 reprint, which NEET and JEE also follow. Corrections were mostly wording brought in line with NCERT, items too close to NCERT exercises renumbered, and content beyond the rationalised book labelled as extra reading.How Haya prepared this subject
