In order to get a really good grasp on DNA, Ms. Kneller’s Living Environment students conducted a rather tasty lab during their unit on genetics.
Ms. Kneller gave each student a template strand and the students had to write in the complementary strand (symbolizing DNA replication).
They used different colored marshmallows to represent the four different nitrogenous bases that are the building blocks of DNA: Adenine, Thymine, Guanine, and Cytosine. Students put together their DNA sequences using the marshmallows placed on toothpicks, which represented the “rungs” of the DNA “ladder.” Twizzlers were used to represent the backbones or sides of the DNA structure.
The students had a great time conceptualizing what a DNA double helix actually looks like, and devouring their DNA afterward!