This week on Mendelspod, as we celebrate International Women’s Day, we’re spotlighting groundbreaking contributions from women in science. Our guest, Dr. Mirna Ghemrawi, is at the forefront of forensic genetics, where DNA analysis meets the pursuit of justice. As Associate Director at the Center for Forensic Science Research and Education, Ghemrawi applies next-gen sequencing and AI to some of the most challenging questions in forensic biology.

Originally from Lebanon, Ghemrawi’s path to forensic science began in the medical field before she earned a Fulbright scholarship to study in the U.S. and ultimately pursued a PhD in forensic genetics. “I always knew I had a passion for forensics,” she says. “There weren’t many opportunities back home, but I knew that any science-related field would help me get there.”

One of the most exciting areas of her current research involves using genetic and epigenetic markers to predict what a suspect may look like—an approach that, when combined with forensic genetic genealogy, could revolutionize investigations. “The idea is that we can not only get human identification from DNA but also predict age, eye color, hair color, and even certain phenotypic traits,” she explains. “If this works, it could help narrow down family trees in genealogical investigations.”

The conversation also touched on the evolving challenges in forensic science, particularly as DNA analysis becomes more sensitive. Questions around DNA transfer—whether genetic material was directly or indirectly placed at a crime scene—are increasingly shaping legal arguments. “We can now get a profile from an incredibly small sample,” Ghemrawi notes, “but that raises questions about how the DNA got there, and courts are having to consider these new complexities.”

Ghemrawi is passionate about mentoring the next generation, particularly encouraging young women to step into forensic science. “The only way you know you can’t do something is by trying,” she advises. “Ask questions, be persistent, and don’t be afraid to push into new territory.”

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