Complete each sentence with the appropriate term or phrase.
The most useful DNA markers for forensics are
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in the population and do not contribute to
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.
The genotypes of thousands of people at 13 unlinked
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loci are kept in a law enforcement database called
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.
If a suspect’s DNA
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DNA found at a crime scene, the crime scene DNA did not come from the suspect.
If a suspect’s DNA
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DNA found at a crime scene, the likelihood of finding that particular 13-locus genotype in the population is determined.
Because the CODIS loci are in Hardy-Weinberg equilibrium, the genotype frequency at each SSR locus can be calculated from the
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.
Considering SSR locus A, if the frequency of allele 1 is 0.2 and the frequency of allele 2 is 0.4, the frequency of a heterozygote with allele 1 and allele 2 is
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.
At a second SSR locus B, if the frequency of allele 1 is 0.1, the frequency of an individual who is homozygous for allele 1 is
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.
The chance that both of those specific genotypes at the A and B loci would be found in the same person is
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, or
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people.
The probability of a match at all 13 SSR loci is
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because the genotype frequencies at each locus are
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to find the match probability.