2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/88376The Penna ageing model is based on mutation accumulation theory. We show that it also allows for self-organization of antagonistic pleiotropy which helps at young age at the expense of old age. This can be interpreted as emergence of altruism.4 pages including 2 figuresPopulations and Evolutiontext