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2. http://www2.unia.es/BiomedicineWorkshops/Workshops2007/POSTER_STRESS_RESP_EVOLVAB.pdf.
3. , . 2005. The Plausibility of Life: Resolving Darwin's Dilemma. New Haven, CT: Yale University Press.
4. Gene products with evolutionary functions
5. http://devolab.cse.msu.edu/software/avida/.