Biology A (9-1) - Gateway Science Suite J247 9-1: Global challenges Topical Past Paper Questions

The table shows some details of three genetic diseases that can affect humans. (a) There are 66 million people in the UK. Calculate the number of cases of Huntington's disease in the UK. Number of cases = (b) All three diseases affect proteins in different parts of the body. (c)…

A rare species of animal is found in a less economically developed country. The government of the country want to set up a conservation area. Which of these is unlikely to be a problem for the government? A Making agreements with all the people that own the land. B Persuading con…

Cancer is caused by changes in cells. (a) Describe the effects that cancer has on cells. [2] (b) Cells usually become cancerous due to damage to their DNA. Scientists have found a gene called BRCA. This gene usually produces a protein that repairs damage in DNA. (i) There are $ 3…