About This Biology PYQ Book
Ever opened your Biology textbook and wondered what RBSE will actually ask? That question is the whole reason this book exists.
We collected every question from the last 14 Class 12 Biology board papers — 2013 right up to 2026 — and rearranged them chapter by chapter. So instead of hunting through 14 separate PDFs, you can just open one chapter and see everything RBSE has ever asked from it.
Every question is real. Pulled straight from the actual board paper, not rewritten or rephrased. And next to each one, you'll find two small details: the marks it carried and the year it came in. Some questions show more than one year. That's not a typo. "Define apomixis" came in both 2018 and 2024. The co-dominance question with blood groups? It appeared in 2013, then 2015, then 2016, then again in 2020. Once you spot that, you stop wondering which topics matter. The years tell you.
The chapters inside follow the same section pattern as your real paper:
- Section A — MCQs, fill in the blanks, and very short answers. The quick ones, 0.5 to 1 mark.
- Section B — short answer questions, 1.5 to 2 marks.
- Section C — long answers, 3 marks each.
- Section D — the 4-mark essay-type questions, usually with a diagram.
You'll sit in the exam hall and the format will already feel familiar. That alone takes a chunk of the panic out.
All 13 syllabus chapters are here — Sexual Reproduction in Flowering Plants, Human Reproduction, Reproductive Health, Genetics, Molecular Basis of Inheritance, Evolution, Human Health and Disease, Microbes, both Biotechnology chapters, Organisms and Populations, Ecosystem, and Biodiversity and Conservation. The 2025 and 2026 papers are already inside. Nothing outdated.
A few things you'll spot once you start using it:
Some questions just don't stop coming back. The Hershey-Chase experiment. The malarial parasite's life cycle. The structure of pBR322. Spermatogenesis. Mendel's monohybrid cross. Transcription unit. These aren't lucky guesses on our part — the years next to each question prove it.
Diagrams get flagged clearly too, so you know which labelled diagrams to actually practise. (Replicating fork, antibody molecule, biogas plant, nucleosome, embryo sac — these keep showing up.)
The whole thing is available in Hindi and English, so pick whichever one you actually think in.
Try the free sample first. Chapter 1 — Sexual Reproduction in Flowering Plants — is yours to download without paying anything, in both mediums. Open it, see how the year-tagging works, see if the format clicks with you. Decide after that.
One last thing. This book isn't meant to replace your textbook or your teacher — they teach you the concepts. What this does is take 14 years of RBSE's actual questions and put them in front of you, sorted and tagged, so nothing important slips past. The 30+ students from RBSE 2026 who scored above 90% (you can see their photos on our results page) studied exactly this way. So can you.
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