An enzyme synthesized in the laboratory is found to have little activity when compared to the enzyme extracted from cell culture. Both enzymes were examined and have identical amino acid composition. Which of the following is the most likely explanation for the lack of activity of the synthesized enzyme?

The foundation of the modern United States criminal justice system was derived from _____ theory.

The foundation of the modern United States criminal justice system was derived from _____ theory.

18. Size is a useful tool to help differentiate parasites of the same family.  Which of the following is the smallest amoebae?

35. These eggs are passed in the feces and can be unsegmented or segmented before developing into the larval stage. This particular ovum does not provide a clear organism identification. What ovum is present?   (Enlarged for detail, this is a single ovum)

6. A 7-year-old girl was at summer camp and dove into the lake many times. She complained that water went up her nose a few times.  Several days later she is unresponsive and comatose. She was rushed to the hospital. A CSF fluid specimen was collected and several motile amoeba were observed. She is most likely suffering from an infection with the following parasite?

12.  A 4-year-old boy attended day care 3 days per week. He was irritable, and his parents noticed that he had persistent perianal itching. A sticky paddle was pressed against the perianal region and sent to the laboratory for testing. The eggs microscopically observed would most likely have which one of the following morphologic features?

17. A vector that is involved in the life cycle of the parasite is called: 

10. A thick ring, large nucleus, and bands across the cell and 6 – 12 merozoites in the mature schizont are all characteristics of which Plasmodium spp.?

8. This protozoan class reproduces via longitudinal binary fission.  The parasite belongs to which category?