Which one of the following forms of malarial parasite escapes during digestion in the alimentary canal of the mosquito ?

Options

A. Gametocyte
B. Sporozoite
C. Trophozoite
D. Cryptomerozoite

Explanation

To solve the question regarding which form of the malarial parasite escapes during digestion in the alimentary canal of the mosquito, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which form of the malarial parasite escapes during digestion in the mosquito's alimentary canal.

2. **Identify the Forms of the Malarial Parasite**: The options provided are:
- Gametocytes
- Sporocytes
- Trophozoites
- Cryptomerozoites

3. **Analyze Each Option**:
- **Gametocytes**: These are the sexual forms of the malaria parasite. When a mosquito feeds on an infected host, it ingests these gametocytes. They are known to escape the digestive process in the mosquito's stomach.
- **Sporocytes**: These are formed after the fertilization of gametocytes and are not the ones that escape during digestion. They migrate to the liver of the human host.
- **Trophozoites**: These are the active feeding forms of the malaria parasite and are also present in the mosquito's stomach during digestion.
- **Cryptomerozoites**: This stage is produced during asexual reproduction and is also present in the mosquito's alimentary canal.

4. **Conclusion**: After analyzing all the options, it is clear that the **gametocytes** are the form of the malarial parasite that escapes during digestion in the mosquito's alimentary canal.

5. **Final Answer**: The correct answer is **gametocytes**.