The presence of active motile multi-flagellated trophozoites in vaginal or urethral secretion is indicative of infection with
A. Trichomonas vaginalis.
B. Chlamydia trachomatis.
C. Giardia intestinalis.
D. Acanthamoeba.
E. Balantidium coli.
Answer: A
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Which of the following descriptions best fits the class of molecules known as nucleotides?
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If true-breeding red long radishes are crossed with true breeding white oval radishes, the F 1 will be expected to be which of the following?
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