By Grant Jacobs 05/03/2016


Sweet chromosomes to sweeten your weekend –

Sweet chromosomes

Human karyotype in sweets by Rhiannon Morris ‏(twitter @RheeMor), shared with permission.

Karyotype of person with Down Syndrome - note the extra chromosome 21 (See Footnote 1 for more).
Karyotype of person with Down Syndrome – note the extra chromosome 21 (See Footnote 1 for more).

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.

If you search the internet you’ll find a lot more sweet biology, like these biology-themed cakes.

Other articles on Code for life:

Scientific baking. Great for those lab meetings or kids’ parties.

The scale of cellular life and compacting chromosomes

Advent, chromosome by chromosome

Boney lumps, linkage analysis and whole genome sequencing

A dot in space and chromosomes

Coiling bacterial DNA

Friday picture: molecular modelling of the cytoplasm

Observing neurons and 1960s sci-fi geeks