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WHS Biology Students Create Edible DNA in Recent Lab

Candy & Marshmallows Find Their Place in the Classroom!

Students in Mr. Shannon’s Biology class concluded their section studying DNA by making models of DNA replication.

First, students created paper models of DNA, deoxyribonucleic acid, which contains our genetic code, using the complementary base pair rules. Each student made a 10-subunit section of DNA and linked it with his/her partner. In turn, each class’s DNA models were put together to form a chain of DNA, which are currently displayed in Mr. Shannon’s room.

Finally, students simulated the process of DNA replication, using licorice, colored marshmallows, Starbursts, and gummy worms. Students paired up, with the students creating the model, using the licorice as the side of the DNA, representing the deoxyribose sugar and phosphate group of the molecule. Toothpicks were used to represent the hydrogen bonds holding the nitrogen bases together, which were represented with colored marshmallows, Starbursts, or gummy bears.

The students then disassembled their DNA molecules and began replicating each side of the DNA, with one student representing the leading end and one representing the lagging end. Once their DNA molecules were intact, students twisted their models to represent the double helix formation of DNA.

Students then were able to cap off another successful lab by eating their creations.

WHS Biology Students Create Edible DNA in Recent Lab

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