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Related Experiment Video

Updated: Jul 5, 2026

A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene

A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene

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Restriction fragment length polymorphism analysis.

¹Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.

Current Protocols in Human Genetics

|April 23, 2008

Summary

Restriction Fragment Length Polymorphism (RFLP) analysis uses DNA digestion to detect genetic variations. This method traces the inheritance of specific DNA fragments across generations within families.

Area of Science:

Molecular Biology
Genetics
Biotechnology

Background:

Genetic variations can be identified using DNA analysis techniques.
Restriction Fragment Length Polymorphism (RFLP) is a method for detecting these variations.

Purpose of the Study:

To describe the methodology of Restriction Fragment Length Polymorphism (RFLP) analysis.
To explain how RFLP can be used to study the inheritance of DNA sequence polymorphisms within families.

Main Methods:

Genomic DNA is digested with specific restriction enzymes.
DNA fragments are separated by size using agarose gel electrophoresis.
DNA is transferred to a membrane (Southern blot) for hybridization with a labeled probe.
Washing and X-ray film exposure identify specific DNA fragments.

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Last Updated: Jul 5, 2026

A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene

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Published on: September 16, 2019

Modified Terminal Restriction Fragment Analysis for Quantifying Telomere Length Using In-gel Hybridization

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Published on: July 10, 2017

High-resolution Melting PCR for Complement Receptor 1 Length Polymorphism Genotyping: An Innovative Tool for Alzheimer's Disease Gene Susceptibility Assessment

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Published on: July 18, 2017

Main Results:

Identified DNA fragment sizes vary among individuals.
These variations can be traced through family generations, demonstrating inheritance patterns.

Conclusions:

RFLP analysis is a valuable tool for identifying and tracing DNA sequence polymorphisms.
The technique facilitates the study of genetic inheritance patterns in families.