Sweet chromosomes to sweeten your weekend –
Karyotypes are the collection of chromosomes in our cells, laid out in order. They can be used to identify chromosomal abnormalities, such as the extra chromosome 21 in Down syndrome individuals like the example shown to the right.
Modern variants of karyotype displays feature multiple colouring of the bands of chromosomes. You can faintly see the bands in the Down Syndrome karyotype on the right. The bands correspond to the density of the packing of chromosomes, or other features that the staining is highlighting.
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