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HomeHomework HelpbiologyDNA Fingerprinting

DNA Fingerprinting

DNA fingerprinting, also known as DNA profiling, is a molecular technique used to identify individuals based on unique patterns in their DNA sequences, particularly in non-coding regions that exhibit high variability among individuals. This method is commonly utilized in forensic science, paternity testing, and genetic research to establish biological relationships or identify genetic material.

intermediate
3 hours
Biology
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Overview

DNA fingerprinting is a revolutionary technique that allows scientists to identify individuals based on their unique DNA patterns. This method has transformed forensic science, enabling law enforcement to solve crimes more effectively by matching DNA found at crime scenes to potential suspects. Addi...

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Key Terms

DNA
Deoxyribonucleic acid, the molecule that carries genetic information.

Example: DNA is found in the nucleus of cells.

PCR
Polymerase Chain Reaction, a method used to amplify DNA.

Example: PCR allows scientists to create millions of copies of a specific DNA segment.

Gel Electrophoresis
A technique used to separate DNA fragments based on size.

Example: Gel electrophoresis helps visualize DNA profiles.

Genetic Variation
Differences in DNA sequences among individuals.

Example: Genetic variation is what makes each person unique.

Forensics
The application of scientific methods to solve crimes.

Example: Forensic scientists use DNA fingerprinting to identify suspects.

Alleles
Different forms of a gene that can exist at a specific locus.

Example: An individual may inherit different alleles from each parent.

Related Topics

Genetic Engineering
The manipulation of an organism's DNA to achieve desired traits.
advanced
Forensic Science
The application of scientific methods to solve crimes and legal issues.
intermediate
Molecular Biology
The study of biological processes at the molecular level.
advanced

Key Concepts

DNA structureGenetic variationPCR techniqueForensic applications