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Question

Cysts of Entamoeba histolytica have

A
One nucleus
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B
Two nuclei
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C
Four nuclei
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D
Many nuclei
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Solution

The correct option is D Four nuclei
Cyst of Entamoeba histolytica is quadrinucleate and it is the infective stage for man. Man ingest quadrinucleate cyst with contaminated food or water. Cyst wall escapes digestion by gastric juice and reaches in the small intestine, where trypsin digest cyst wall and cyst produces 4 trophozoites.
Hence the correct option is C.

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