This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Heterozygous sickle cell anemia gives protection against - \nSelect and explain. \nA. G6PD, B. Malaria, C. Thalassemia, D. Dengue fever', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The possession of the sickle cell allele protects these individuals against malaria because the parasite dies when potassium leaks out of RBCs as they become sickle-shaped.\nTypes of anemia that have protective effect against P. falciparum malaria : -\nG6PD deficiency, Sickle cell anemia, Thalassemia, HbC, Pyruvate kinase deficiency', 'role': 'assistant'}]