Explain the life cycle of malarial parasite in mosquito and human hosts with suitable diagram.
The life cycle of the malarial parasite involves complex interactions between the mosquito vector (usually Anopheles species) and the human host. Malaria is caused by Plasmodium parasites, with several species capable of infecting humans, including Plasmodium falciparum, Plasmodium vivax, Plasmodium malariae, and Plasmodium ovale. The life cycle consists of two main phases: the sporogonic cycle in the mosquito and the schizogonic cycle in the human.
### Life Cycle of Malarial Parasite:
#### 1. Sporogonic Cycle (in Mosquito):
1. Mosquito Infection:
- The cycle begins when a female Anopheles mosquito takes a blood meal from an infected human, ingesting Plasmodium gametocytes (sexual forms of the parasite) in the process.
2. Gametocyte Development:
- In the mosquito's midgut, gametocytes transform into gametes (male microgametes and female macrogametes) through a process called gametogenesis.
3. Fertilization:
- Fertilization occurs when a mosquito ingests both types of gametes during a blood meal, resulting in the formation of a ____ ______ _____ _______ _________ _____.
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