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Fragile X pedigree + rflp autoradiograph

Wessex Reg. Genetics Centre

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Credit: Fragile X pedigree + rflp autoradiograph. Credit: Wessex Reg. Genetics Centre. Attribution 4.0 International (CC BY 4.0)

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Fragile X pedigree and restriction fragment length polymorphism (rflp) autoradiograph showing CGG repeat expansion. Repeats of the base sequence CGG are a characteristic of this chromosome abnormality. The bands on the autoradiograph represent fragments of the DNA of the Fragile X chromosome which have been cut by enzymes at specific base sequences.

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