Multiple choice

P. falciparum is taken up by the female Anopheles mosquito as it takes its bloodmeal from an infected human. Which among the following statements does not characterise life cycle of P. falciparum in the female Anopheles mosquito?

  1. The ookinete is the only haploid stage of P. falciparum.

  2. During the ookinete stage, genetic recombination can occur.

  3. The ookinete is an invasive form of P. falciparum within the mosquito.

  4. Immature sporozoites break through the oocyst wall into the haemolymph.

  5. The sporozoites complete their differentiation in the salivary glands of mosquito.
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A Correct answer
Explanation

Fertilization of the female gamete by the male gamete occurs rapidly after gametogenesis. The fertilization event produces a zygote. The zygote then develops into an ookinete. The zygote and ookinete are the only diploid stages of P. falciparum.

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