[Wacka]

An exquisite picture of how this works is in the study of Hox genes (homeobox) genes.
Hox genes determine where the parts of the body develop from insects all the way up to humans. The gradient of expression of this whole set of genes determine where the head, arms legs and organs develop in almost all animals. Scientists have replaced the hox gene with different colored fluorescent proteins. In fruit fly pupae, a nice rainbow of colors is produced, showing where each gene is expressed. The 1995 Nobel was awarded for the discovery of Hox Genes.

[neverdem]

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