The sporozoites that cause infection, when a female Anopheles mosquito bites a person, are formed in

Options

A. liver of the person
B. RBCs of mosquito
C. salivary glands of mosquito
D. intestine of mosquito.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where sporozoites, which are responsible for causing malaria, are formed when a female Anopheles mosquito bites a person.

2. **Life Cycle of Malaria Parasite**: When a female Anopheles mosquito bites an infected person, it ingests gametocytes (the sexual form of the malaria parasite) from the person's blood.

3. **Development in Mosquito**: After ingestion, these gametocytes develop in the mosquito's intestine. This is where they undergo a transformation into sporozoites.

4. **Migration to Salivary Glands**: Once the sporozoites are formed in the mosquito's intestine, they migrate to the salivary glands of the mosquito.

5. **Transmission to Humans**: When the mosquito bites another person, the sporozoites are injected into the person's bloodstream through the saliva of the mosquito, leading to infection.

6. **Conclusion**: Therefore, the sporozoites that cause infection when a female Anopheles mosquito bites a person are formed in the **intestine of the mosquito**.

**Final Answer**: The correct option is **D: intestine of mosquito**.

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