Page 04 5. The binding of oxygen to haemoglobin is affected by small changes in temperature or pH. Which of the following changes would decrease haemoglobin’s affinity for oxygen? A increased temperature, decreased pH B increased temperature, increased pH C decreased temperature, decreased pH D decreased temperature, increased pH 6. The gene represented in the diagram codes for multiple proteins due to alternative RNA splicing. The coding regions (exons) are labelled 1 to 10. 1 2 3 4 5 6 7 8 9 10 Alternative RNA splicing results in an mRNA that contains exon 2 or 3, exon 4, 5 or 6 and exon 7 or 8. Predict the total number of different proteins that can be produced from this gene. A 3 B 7 C 12 D 15