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As you've learned, PCR stands for Polymerase Chain Reaction, and is a method for selecting and amplifying DNA sequences. Each sample of interest goes through PCR, then the resulting amplified samples are run through gel electrophoresis. The samples are injected into "wells" of a gel then a current runs through it. The DNA segments are charged, and are carried with the current. Heavier fragments (with more repeats) fall out first and are closer to the well; lighter fragments (those with fewer repeats) go further. What do the different bands of this STR gel represent? DNA size markers Sexual assault evidence Blood samples

As you've learned, PCR stands for Polymerase Chain Reaction, and is a method for selecting and amplifying DNA sequences. Each sample of interest goes through PCR, then the resulting amplified samples are run through gel electrophoresis. The samples are injected into "wells" of a gel then a current runs through it. The DNA segments are charged, and are carried with the current. Heavier fragments (with more repeats) fall out first and are closer to the well; lighter fragments (those with fewer repeats) go further. What do the different bands of this STR gel represent? DNA size markers Sexual assault evidence Blood samples

Human Anatomy & Physiology (11th Edition)
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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Answer choices are:

A.Two different STRs on the same chromosome

B.The two alleles of that particular STR the individual has; one from mom, the other from dad

C.Two different STRs on different chromosomes

As you've learned, PCR stands for Polymerase Chain Reaction, and is a method for selecting and amplifying DNA sequences. Each sample of interest goes through PCR, then the resulting amplified samples are run through gel electrophoresis. The samples are injected into "wells" of a gel then a current runs through it. The DNA segments are charged, and are carried with the current. Heavier fragments (with more repeats) fall out first and are closer to the well; lighter fragments (those with fewer repeats) go further. What do the different bands of this STR gel represent? DNA size markers Sexual assault evidence Blood samples 1 2 3 4 5 6 Victim Suspect A Suspect B. Female fraction Male fraction
Transcribed Image Text:As you've learned, PCR stands for Polymerase Chain Reaction, and is a method for selecting and amplifying DNA sequences. Each sample of interest goes through PCR, then the resulting amplified samples are run through gel electrophoresis. The samples are injected into "wells" of a gel then a current runs through it. The DNA segments are charged, and are carried with the current. Heavier fragments (with more repeats) fall out first and are closer to the well; lighter fragments (those with fewer repeats) go further. What do the different bands of this STR gel represent? DNA size markers Sexual assault evidence Blood samples 1 2 3 4 5 6 Victim Suspect A Suspect B. Female fraction Male fraction
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