Which one of the following conditions through harmful in itself, is also a potential saviour from mosquito borne pernicious malaria due to Plasmodium falciparium?

Options

A. Leukemia
B. Thalassemia
C. Sickle cell anaemia
D. Pernicious aneamia

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks us to identify a condition that, while harmful, provides some protection against malaria caused by Plasmodium falciparum.

2. **Identifying the Options**: The options given are:
- A) Leukemia
- B) Thalassemia
- C) Sickle Cell Anemia
- D) Pernicious Anemia

3. **Analyzing the Conditions**:
- **Leukemia**: A type of cancer that affects blood cells but does not provide any known resistance to malaria.
- **Thalassemia**: A genetic blood disorder that can cause anemia, but it does not specifically provide resistance to malaria.
- **Sickle Cell Anemia**: A genetic disorder where red blood cells become sickle-shaped. This abnormal shape makes it difficult for Plasmodium falciparum to infect these cells, thus providing resistance to malaria.
- **Pernicious Anemia**: A condition that results from the inability to absorb vitamin B12, leading to anemia but does not confer any protection against malaria.

4. **Conclusion**: Among the options, Sickle Cell Anemia stands out as the condition that, while harmful due to its own complications, provides a protective advantage against malaria caused by Plasmodium falciparum.

5. **Final Answer**: The correct option is C) Sickle Cell Anemia.

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