Combined Science (A) J250,08 Higher November 2020, OCR GCSE Past Papers with Mark Schemes

The OCR GCSE Combined Science A J250/08 November 2020 paper covers Biology topics including genetic crosses, cholesterol and heart disease, bacterial resistance, algae growth, and genetic engineering. Section A features multiple-choice questions on meiosis, symbiosis, and phylogenetics. Section B involves extended responses on cholesterol′s impact on heart disease, antibiotic effectiveness, abiotic factors affecting algae, and the genetic engineering process. Key themes emphasize critical thinking, data interpretation, and practical applications in biological systems. Total marks: 60. Duration: 1 hour 10 minutes.