What is the basis of the PCR for HIV detection?

An aspirate of a deep wound was plated on blood agar plates aerobically and anaerobically.  At 24 hours, there was growth on both plates.  This indicates that the organism is:

A spiral, flexible organism was demonstrated on a blood smear.  This motile organism was approximately 12μm long, approximately 0.1μm wide, and had semicircular hooked ends.  The description of this organism corresponds most closely to the morphology of:

In the two-tier system for serological diagnosis of Lyme Disease:

Which reaction is not correct for M. tuberculosis?

Structures important in the microscopic identification of Coccidiodes immitis are:

The image below shows the results of O-F media. The organism is considered to be

A Gram-negative bacillus isolated from a stool specimen which appears curved on the Gram stain and grows best at 42 degrees C in reduced oxygen and increased carbon dioxide is most likely:

Which of the following agars is used for selective isolation of C. difficile?

Two standard deviations (2SD) from the mean in a normal distribution curve would include