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Biology LibreTexts

10: Molecular Markers and Quantitative Traits

Figure 10.1: Many traits, such as body mass, show continuous variation, rather than discrete variation. Although environment obviously also affects this trait, some of the variation observed between individuals is heritable, and is dependent on the interactions of multiple alleles at multiple loci. The study of quantitative traits is one of many applications of molecular markers. (Flickr-Jamie Golombek-CC:AND)