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As a laboratory technician in at the University of Puerto Rico, I worked with the revolutionary CRISPR/Cas-9 gene-editing technology to study the genetic basis of the colorful patterns on butterfly wings. Specifically, we used Heliconius charithonia as our study system. One of my master's theses focused on using CRISPR/Cas-9 to delete specific genes and study the resulting changes in wing phenotype. Check out some of the stunning striped butterflies they have down at the mariposario.