OCR A Level Biology A Paper 2 2025 Question Paper

Get the official OCR A-Level Biology A H420/02 Biological Diversity June 2025 question paper used in the Summer 2025 OCR examination series. This authentic examiner-issued PDF contains multiple-choice, data-analysis, practical-skills, ecology, genetics, evolution, biodiversity, cloning, conservation, and inheritance questions exactly as presented to candidates during the live OCR assessment.

This paper includes exam questions on hydrogen bonding, osmosis investigations, Euglena classification, cloning in plants and animals, stem cells, microscopy, biodiversity sampling, Simpson’s Index of Diversity, conservation of the Farne Islands, predator-prey relationships, genetic inheritance, Hardy–Weinberg calculations, antibiotic resistance, fossils, DNA sequencing, and evidence for evolution by natural selection. Pair it with the matching OCR H420/02 June 2025 mark scheme on markscheme.net for complete examiner-style revision and exam preparation. Updated for the 2025/2026 academic year, mobile-friendly, and instantly downloadable from markscheme.net.

This document is designed for OCR A-Level Biology A students preparing for the 2026 examination series, Year 13 learners studying Biological Diversity, retake students targeting top grades, and home-schooled candidates seeking authentic OCR exam practice under timed conditions.

It is also ideal for teachers, private tutors, revision-course providers, and parents supporting Biology revision at home. The question paper can be used for mock examinations, biodiversity fieldwork preparation, genetics revision, ecology data analysis, and OCR exam-technique practice.