How DNA Evidence Works

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Keywords

HowStuffWorks DNA Forensics Evidence Fingerprinting Profiling Crime Criminal Investigation Polymorphism Polymorphic Variation Variability Sequence Nucleotide Substitution Mutation Gene Non-coding Intron Exon Chromosome number tandem repeats VNTR Homozygous Homozygote Heterozygous Heterozygote Restriction length fragment polymorphism RFLP Electrophoresis Sample Specimen Restriction Enzyme Complementary Strand Probe Radioactive x-ray probability polymerase chain reaction PCR Amplification Database Court Paternity Disease Disorder

Subjects

Science STEAM

Grade Levels

Grade 9 Grade 10 Grade 11 Grade 12

Related Resources

How DNA Evidence Works

Is DNA evidence as good as the proverbial "smoking gun" in solving crimes? This article by An Meeker-O'Connell reveals how DNA profiles are made and then used to match criminals to crimes, fathers to their children, and identities to John and Jane Does.

Publisher

PBS Learning Media