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segment of genetic code may not impact our daily lives, it serves as a powerful tool for exploring our ancestry. Since mitochondrial DNA is inherited exclusively from one's mother, students can trace their maternal lineage back through time by comparing their mitochondrial DNA sequences to those of people worldwide. Accessing their genetic code through a secure database, students utilized bioinformatics tools to investigate their kinship with the entire human species. This exploration led to one of biology's most profound revelations: All living humans are part of one vast extended family, with roots tracing back to Africa. This experiment not only deepens our understanding of genetics but also fosters a sense of connection to our shared humanity. 12TH GRADE Students in the Advanced Topics in Marine Science elective class participated in a three-day DNA barcoding lab, using seafood samples to investigate species identity through a series of advanced biotechnology techniques. Students began with DNA extraction, isolating genetic material from tissue samples, followed by PCR (polymerase chain reaction) to amplify a specific region of DNA for identification. They then ran their samples through gel electrophoresis, a method used to check whether the DNA amplification was successful, and then moved on to bioinformatics, using software to analyze sequencing data and compare it to genetic databases. Alongside the lab work, students explored the broader issue of seafood sustainability, including how consumer demand can lead to black-market practices and the substitution of one species for another. Through this experience, students gained firsthand exposure to modern biotechnology tools and saw how molecular biology connects to real-world environmental and ethical challenges in marine science. n Hands-on Exploration Last fall, through in-class visits from a DNA Learning Center DNLAC educator, and a field trip to DNALC in Brooklyn, my class learned about DNA structure and how genes work. We did several hands-on activities, such as transcription DNA into RNA using informational kits. We also got to perform agarose gel electrophoresis, which is used to separate DNA, RNA, and proteins, to analyze DNA evidence left at a "crime scene." This was an exciting experience because we got firsthand accounts of what it is like working in a lab with different bacteria. As someone who aspires to become a doctor, I especially enjoyed this partnership because we learned medical terms and got to work with numerous pieces of equipment like micropipettes and sterile tips. Having the opportunity to visit the center also allowed me to truly see if I wanted to pursue a career in medicine. While transferring liquids using a micropipette seems like a small task, it's a frequently used process in medicine. It can apply to diagnostic testing, drug research, etc. To become a doctor, it takes great focus and patience, and the field trip highlighted both of these traits. –Ma'at K. '29 TREVOR DAY SCHOOL / 37 INSIDE TREVOR TREVOR TRANSLATES FEATURE AR TICLES ALUMNI

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