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Class XII - Biology
Full Syllabus - Top 50 Most Expected MCQs
Board: CBSE NCERT (Genetics, Reproduction, Ecology, Biotech)
📝 50 Multiple Choice Questions | ⏱️ 50 Minutes
Board Exam 2026 Preparation Test
📚 Quick Revision Key Points
- Genetics: Mendelian ratios (Monohybrid 3:1, Dihybrid 9:3:3:1). DNA structure (double helix, A=T, G≡C). Central Dogma: DNA → RNA → Protein.
- Reproduction: Human: Gametogenesis (Spermatogenesis/Oogenesis), Menstrual cycle phases. Plants: Double fertilization (Syngamy + Triple fusion).
- Biotechnology: PCR (Denaturation, Annealing, Extension). Restriction Enzymes (Molecular scissors). bt Cotton (Cry genes).
- Ecology: Population interactions (Mutualism +/+, Competition -/-, Predation/Parasitism +/-). Energy flow (10% law). Biodiversity hotspots.
Disclaimer: We are not affiliated with NCERT. These questions are created for practice based on the latest rationalised syllabus. Students should refer to NCERT textbooks for final authority.
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