plumiMicroarrays and bioinformatics: Edexcel International A Level Biology questions
Edexcel International A Level Biology past-paper questions on 8.6.3 Microarrays and bioinformatics, 2019–2025, with mark schemes and examiner’s reports where available.
All papers
All years
Q8(f)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ5(a)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(g)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(b)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(f)
The whole paper ↗Loading the start of the question…
Loading the question…
Open the full PDFQ8(b)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ8(c)
The whole paper ↗Loading the start of the question…
Loading the question…
Open the full PDFQ8(f)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ5(c)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDFQ7(c)
The whole paper ↗
Loading the start of the question…
Loading the question…
Open the full PDF
All 11 questions on Microarrays and bioinformatics, as a list
- October 2024, Unit 5, Q8(f) (3 marks): Some genes may be linked to an increase in the risk of dementia. Describe how scientists could identify the link between these genes and the risk of dementia (P
- June 2024, Unit 5, Q8(a) (3 marks): Explain how Ted Turlings and colleagues could have identified that the BtPMaT1 gene found in the whitefly was originally a plant gene (paragraph 2). (3)
- January 2024, Unit 5, Q5(a) (2 marks): Describe how active genes could be identified. (2)
- June 2023, Unit 5, Q8(g) (3 marks): Gut microorganisms produce LPS (paragraphs 15 and 17). White blood cells have receptors for LPS on their cell surface. Describe the techniques that could be use
- October 2022, Unit 5, Q8(b) (3 marks): Suggest how the genes expressed in a sensory neurone could be identified (paragraph 4). (3)
- October 2022, Unit 5, Q8(f) (2 marks): Explain what is meant by the phrase ‘Based on its similarity to Piezo 1, a second ion channel was found (Piezo 2)’ (paragraph 7 and Figure 3). (2)
- January 2022, Unit 5, Q8(b) (2 marks): Suggest how the genes affected by toxicants can be identified (paragraph 4). (2)
- January 2022, Unit 5, Q8(c) (3 marks): Explain how scientists could determine the high degree of homology of genes between humans and zebrafish (paragraph 5). (3)
- October 2021, Unit 5, Q8(f) (3 marks): The team found genetic material from P. gingivalis in the cerebral cortex (paragraph 13). Describe how the team could show that this genetic material is active.
- January 2021, Unit 5, Q5(c) (3 marks): Mutations in other genes can result in blindness. Describe how these genes could be identified. (3)
- October 2020, Unit 5, Q7(c) (4 marks): Describe how microarrays and bioinformatics could be used to investigate the genetic basis of Parkinson’s disease. (4)
Questions, mark schemes and examiner’s reports are © Pearson Edexcel, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Edexcel International A Level Biology past papers.
The Plumi iPad app also offers exam-style questions with AI feedback on your handwritten working.