|Graphic: Cathleen Heard|
Infectious disease researchers use DNA fingerprinting--a collection of methods for detecting organisms' unique DNA patterns--to track and confirm the spread of diseases. Fingerprinters usually compare either the genetic sequences of organisms or the size of nucleic acid fragments that have been digested with special enzymes.
Fingerprinting has helped in investigating any number of organisms. Researchers use it to study the resurgence of...
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