Eltham College Welcomes Chislehurst School for Girls for Advanced DNA Practical
Eltham College was delighted to host 15 Year 13 students from Chislehurst School for Girls for a full-day practical workshop exploring advanced molecular biology techniques. During the visit, pupils were introduced to DNA isolation, PCR and gel electrophoresis, giving them hands-on experience with equipment and methods used in real scientific research.
Supported by Eltham’s specialist staff and using the same state-of-the-art equipment our own students have benefited from over the past three years, the visitors began by extracting DNA from their own cells. They then used a PCR machine to amplify a gene linked to the ability to taste bitterness, known as the PTC gene. This technology, not commonly available in all schools, allowed students to engage directly with real-world genetic analysis.
The amplified DNA samples were later examined using gel electrophoresis. Under UV light, students were able to visualise distinctive DNA banding patterns and determine which version of the PTC gene they carried. This gave them insight into why some people detect bitter flavours in foods such as broccoli or coffee more strongly than others.
