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Use of DNA probe on c-some 9 heterochromatin
- Dr Rosemary Ekong, UCL
- Digital Images
- Online
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Attribution 4.0 International (CC BY 4.0)
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Credit: Use of DNA probe on c-some 9 heterochromatin.
Credit: Dr Rosemary Ekong, UCL.
Attribution 4.0 International (CC BY 4.0)
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Description
This shows a DNA probe which binds specifically to
the heterochromatic region of human chromosome 9.
Heterochromatic regions of chromosomes contain
variable numbers of repeats, and are useful as
polymorphic markers, allowing differentiation
between the chromosomes of different individuals.
This individual has a polymorphism in the
heterochromatic region of chromosome 9 as one of
the chromosome 9s has more repeats in this region,
resulting in the extensive hybridisation signal
seen on one chromosome 9.