The discovery of DNA stands as one of the twentieth century’s greatest scientific breakthroughs, completely transforming our understanding of life itself. This week, our Grade 11 biology students stepped into the shoes of pioneering geneticists to explore the intricate architecture of nucleic acids.
Understanding the iconic double helix is not just textbook theory; t is the essential foundation for grasping modern gene technology, from CRISPR editing to personalised medicine. To bring these abstract molecular concepts into the physical world, students took to the laboratory for a hands-on DNA extraction practical.
Armed with everyday household detergents, enzymes, and chilled ethanol, they successfully broke down cell membranes to isolate and spool tangible strands of genomic material from fresh strawberries and tomatoes. It was a brilliant, messy, and memorable session that bridged the gap between microscopic biochemistry and modern biotechnology.
