M1. The chemical unit of genetic information in most organisms is DNA.
Student Outcome: M1.1
Model the structure of DNA as a double helix made up of a sequence of complementary bases joined by weak bonds. The bases are attached to a sugar phosphate backbone.
Nucleic Acids
Example is DNA - used to store information about what the cell has to do
- Discovered in 1953
- Able to copy itself (self-replicate) and pass information on to daughter cells
- Made up of numerous nucleotides
- Each nucleotide is made up of a sugar (ribose), a phosphate group and a base
Look at this fairly bland video which helps to explain the structure of DNA:
I can't show you this video, but this is a nice if short one showing the structure of DNA
This is a good video showing the structure of DNA, how it is made and how it used to make proteins. Made by a student. Notice how he thanks his teacher.
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