A person with which occupation is most at risk for a zoonotic disease?
A. nurse
B. forest ranger
C. accountant
D. teacher
E. dental hygienist
Answer: B
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Choose the incorrect statement regarding chaperone-assisted protein folding in bacteria
A. The DnaJ/DnaK complex requires ATP to facilitate protein folding. B. DnaJ and DnaK will both bind the unfolded protein. C. A single DnaJ/DnaK complex is rarely sufficient for complete protein folding. D. GrpE stimulates binding of ATP to DnaJ. E. DnaJ prevents aggregation of unfolded polypeptides.
A 29-year-old patient with acquired immunodeficiency syndrome (AIDS) is suspected of having a C. neoformans infection in the cerebrospinal fluid (CSF). A CSF specimen is collected and set up on cycloheximide agar. In addition, an India ink stain is set up. The India ink stain reveals encapsulated yeast; however, 3 weeks later, the cycloheximide agar is negative. Which one of the following
statements explains this discrepancy? a. The India ink result is most likely false positive. b. The ingredients in the cycloheximide agar most likely inhibited the growth of the organism. c. C. neoformans is rarely recovered from CSF; therefore the cycloheximide result is accurate. d. The India ink stain is most likely conta-minated.
This group is one of the two main angiosperm clades. This group has about 200 000 species, and most have two cotyledons. What is the name of this plant group?
a. eudicots b. monocots c. magnoliids d. orchids
A cell is observed under the microscope. What feature will indicate that it is in anaphase?
A) DNA is elongated, not condensed, and difficult to visualize. B) Two separate nuclear membranes are visible. C) Sister chromatids are separating. D) Centrosomes are just beginning to separate and form the spindle.