Foetal sex markers
A micrograph of the chromosome set taken from a foetus. The technique used is called fluorescent in-situ hybridisation, where some of the chromosomes are tagged with fluorescent dyes and illuminated by UV light. in this case the X and Y chromosomes are tagged and fluoresce as light blue and pink, showing this foetus is male, where a female would show two X chromosomes. Other chromosomal abnormalities caused by sex chromosomes would also be revealed using this technique.
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Photo size: 15.6 Mpixels (44.6 MB uncompressed) - 3340x4669 pixels (11.1x15.5 in / 28.3x39.5 cm at 300 ppi)