Introduction & Syllabus Scope

Topic 69 is the second-highest scoring topic in the S&T unit with 62 marks over 6 exam years. Biology questions in RPSC have progressively modernised — from basic cell biology in 2013 to COVID-19 diagnostics in 2021 and now explicitly including CRISPR, mRNA vaccines, and artificial organs in the 2026 syllabus. These three sub-domains have never been asked in previous exams and are therefore highest-probability for 2026.

Topic distribution strategy: The breadth of Topic 69 (cell → plant physiology → human body → biotech → cutting-edge tech) means the examiner can ask on virtually anything. Focus 70% of preparation on modern biotech (CRISPR, mRNA, GMO, fermentation, artificial organs) and 30% on classic physiology (blood groups, digestion, nutrition, immunity).