Students used candy to model the structure of DNA & RNA. The Candy DNA was made in a previous activity. They were expected to create an assigned sequence of RNA nucleotides from their already created DNA strand.
In DNA, each nucleotide consists of a deoxyribose (red licorice), a phosphate (marshmallow), and a nitrogenous base (Skittle). It is important that the deoxyribose and phosphates make up the back-bone and that the bases are bound to the deoxyribose.
In RNA, each nucleotide consists of a ribose (black licorice), a phosphate (marshmallow), and a nitrogenous base (Skittle). It is important that the deoxyribose and phosphates make up the back-bone and that the bases are bound to the deoxyribose.
The Skittle bases are as follows:
Based on the original stand of DNA, the complimentary strand of RNA was created using the correct base pairs: G to C, C to G, T to A, A to U, the U replacing the T in RNA.
Unit 4: Genetics & Heredity
In DNA, each nucleotide consists of a deoxyribose (red licorice), a phosphate (marshmallow), and a nitrogenous base (Skittle). It is important that the deoxyribose and phosphates make up the back-bone and that the bases are bound to the deoxyribose.
In RNA, each nucleotide consists of a ribose (black licorice), a phosphate (marshmallow), and a nitrogenous base (Skittle). It is important that the deoxyribose and phosphates make up the back-bone and that the bases are bound to the deoxyribose.
The Skittle bases are as follows:
- Thymine (T) - Purple [DNA only]
- Adenine (A) - Red
- Guanine (G) - Green
- Cytosine (C) - Yellow
- Uracil (U) - Orange [RNA only]
Based on the original stand of DNA, the complimentary strand of RNA was created using the correct base pairs: G to C, C to G, T to A, A to U, the U replacing the T in RNA.
Unit 4: Genetics & Heredity
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