Biology 7402: Genetics, Populations, Evolution and Ecosystems Topical Past Paper Questions

Define the biological term population. [2 marks] Ecologists monitored the biodiversity of birds in a protected woodland. They recorded the number of bird species breeding in the woodland on the same day, every year for a 30-year period. Figure 4 shows their results. ## Figure 4 F…

Write an essay on one of the topics below. ## Either 1 The importance of interactions between organisms and their environment. [25 marks] ## Or 2 The importance of membranes in the functioning of cells. [25 marks]

In humans, the ABO blood groups and Rhesus blood groups are under genetic control. The inheritance of the ABO blood groups is controlled by three alleles of a single gene, $ \mathrm{I}^{\mathrm{A}} $, $ \mathrm{I}^{\mathrm{B}} $ and $ \mathrm{I}^{\mathrm{O}} $. The alleles $ \mat…