Few laboratory exercises focus on the adaptive significance of sexual reproduction. The investigation described here involves students in a test of one of the predictions of The Red Queen hypothesis – namely, that sexual outcrossing is superior to self-fertilization. Specifically, students challenge two populations of the nematode C. elegans – one obligately outcrossing and one obligately selfing – with pathogenic Serratia marcescens.
Keywords: evolution of sex, sexual outcrossing, Red Queen, C. elegans
University of Ottawa (2019)
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