Before revision: alt=|Strength of natural selection plot as a function of ageThe antagonistic pleiotropy hypothesis
After revision: alt=|Strength of natural selection plot as a function of ageThe(APT) is a theory in evolutionary biology that suggests certain genes may confer beneficial effects early in an organism's life, enhancing reproductive success, while also causing detrimental effects later in life, contributing to the aging process. antagonistic pleiotropy hypothesis