T Level Biology Practice Test

Acute Myeloid Leukaemia (AML) primarily affects the myeloid cells, which are a type of white blood cell that includes several different lineages, such as granulocytes and monocytes. In this condition, the bone marrow produces a large number of abnormal myeloid cells that fail to mature properly, leading to an accumulation of these immature cells. As AML affects the production of myeloid cells, it can influence the overall population of white blood cells as well as interfere with red blood cell and platelet production, since the overproduced leukemic cells crowd out the normal cells in the bone marrow. This means that, alongside the white blood cells, there is an impact on the production of red blood cells and platelets, which can lead to anemia and increased risk of bleeding, respectively. Therefore, stating that AML affects a combination of red and white blood cells accurately describes the disorder's impact on blood cell populations.