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Many students studying DNA structure do not understand or cannot fully visualize the concepts of complementarity, antiparallel, and the organization of the 5’ and 3’ ends of a nucleotide strand. Here, a method that works very well to get students actively involved in the process of describing a DNA molecule is described. Students themselves are used as the nucleotides in this activity.
By completing this activity, the student will be able to:
Necessary Student Background
Students should have prior knowledge about DNA’s role as the genetic material and about the double-helical nature of the DNA molecule. General knowledge about the process of DNA replication, transcription, and translation is also helpful. Additionally, students should:
· be familiar with the structure of nucleotides in terms of their sugar, phosphates, and base.
· be able to identify the sugar, phosphates, and base of a nucleotide.
· understand why the carbons of organic molecules are numbered.
· be familiar with Chargaff’s rules.
· be able to explain hydrogen bonding and base pairing.
DNA structure, Nucleotide, Purine, Pyrimidine, Antiparallel, Complementarity, 5’ (five prime), 3’ (three prime), Chargaff’s rules
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