In a narrow escape, we evaded catastrophe today when fellow blogger Xeno discovered a giant chicken egg did not contain either a mutated chick intent on razing Tokyo or a parasitic alien, but a second normal chicken egg! Sci-fi fans everywhere breathe a sigh of relief.

After my post yesterday I decided to do a few more entries on the unusual routes that have produced new genes. In the first example an intragenic inversion produced two new genes, tomorrow I will talk about a chimeric gene from capture of a gene from a mobile element, and then Thursday aberrant splicing in a fortuitous transcript of two adjacent genes followed by reverse transcription to insert the new gene into the genome. I don’t know about you, but my pulse goes up at least 5 bpm just thinking about it!