This award supports CM or MCBB Ph.D. candidates who have completed the qualifying exam and made significant contributions to their field. Alexandra is a fifth-year MCBB Ph.D. student conducting research in the Bradham Lab. Her lab studies pattern formation during embryonic development using sea urchin larvae, Lytechinus variegatus as a model. Her project examines the effects of per-and polyfluorinated substances (PFAS) on skeletal patterning. In particular, perfluorooctanoic acid (PFOA) and the more recent, reportedly safer chemical hexafluoropropylene oxide dimer acid (GenX).