Many times a forensic scientist has only a single hair or a single drop of blood for analysis. The amount of DNA in this kind of material is very tiny, and is not enough to use for comparison. In other words, running a single experiment to compare the DNA in a drop of blood with several suspects would use up all of the DNA in that drop of blood. This could be a serious problem if none of the suspects provided a match. How would a forensic scientist increase the amount of DNA available to them, starting with the DNA that would be found in their crime scene sample, such as a drop of blood from a suspect?
Many times a forensic scientist has only a single hair or a single drop of blood for analysis. The amount of DNA in this kind of material is very tiny, and is not enough to use for comparison. In other words, running a single experiment to compare the DNA in a drop of blood with several suspects would use up all of the DNA in that drop of blood. This could be a serious problem if none of the suspects provided a match. How would a forensic scientist increase the amount of DNA available to them, starting with the DNA that would be found in their crime scene sample, such as a drop of blood from a suspect?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Many times a forensic scientist has only a single hair or a single drop of blood for analysis. The
amount of DNA in this kind of material is very tiny, and is not enough to use for comparison. In
other words, running a single experiment to compare the DNA in a drop of blood with several
suspects would use up all of the DNA in that drop of blood. This could be a serious problem if none
of the suspects provided a match.
How would a forensic scientist increase the amount of DNA available to them, starting with the
DNA that would be found in their crime scene sample, such as a drop of blood from a suspect?
PCR
RFLPS
Gel electrophoresis
STRS
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