Christine L. Case, Ed.D.
Biology Professor
Skyline College

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Clinical Problem Solving

Using PCR.
A 22-year-old man presented to an emergency department with a one-day history of fever, myalgia, chills, headache, and malaise; he did not have dyspnea or cough.

Ticks.
A 2-year-old girl was taken to the emergency department of a regional hospital because of a 2-day history of unsteady gait, difficulty standing, and reluctance to walk.

Apples
DNA fingerprints from E. coli O157:H7 isolates.

Build a Molecular Clock
The origin of HIV.