Multiple choice

The oocysts of Cystoisospora belli are long and oval-shaped. Which among the following statements regarding the life cycle of Cystoisospora belli is incorrect?

  1. Trophozoites develop into schizonts.

  2. The sporozoites invade the epithelial cells of the allimentary.

  3. Transmission occurs when these mature oocysts are ingested.

  4. An oocyst with two sporoblasts is released in the stool of infected person.

  5. Each sporocyst divides twice, resulting in four sporozoites.
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D Correct answer
Explanation

An oocyst with one sporoblast is released in stool of infected person.After the oocyst has been released, the sporoblast matures further and divides into two.

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