12.) Which of the following flagellates have no known cyst phase in their life c

Question

12.) Which of the following flagellates have no known cyst phase in their life cycle:

A. Dientamoeba fragilis and Giardia lamblia B. Giardia lamblia and Chilomastix mesnlii C. Trichomonas vaginalis and Dientamoeba fragilis D. Trichomonas vaginalis and Giardia lamblia

13.) This pathogenic flagellate is most commonly transmitted by drinking water contaminated with cysts. It can also be transmitted sexually or by person to person contact:

A. Giardia lamblia B. Dientamoeba fragilis C. Trichomonas vaginalis D. Chilomastix mesnlii

14.) The parasite that causes Chagas Disease is:

A. Trypanosoma brucei gambience B. Trypanosoma cruzi C. Leishmania braziliensis D. Leishmania donovani

Explanation / Answer

12)

Both Trichomonas vaginalis and Dientamoeba fragilis have no cyst phases. Hence the answer is C

13) A, Giardia lamblia, spreads via cysts in infected water or surface. It also spreads between male homsexual partners through faeces,

14) B, Trypanosoma cruzi causes the disease

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