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Tuesday, December 24, 2013
Video Tutor Session Quiz: DNA Structure
In this model, the deoxyribose sugar is the blue five-sided structure at the center.
A polynucleotide contains a sugar/phosphate backbone, where the sugar of one nucleotide binds to the phosphate of the next, and so on.
Remember the base pairing rules: A goes with T, and G goes with C. So the sequence GCAC matches with the sequence CGTG.
There are four kinds of DNA nucleotides, abbreviated A, T, C, and G.
The sugar and phosphate groups are the same for all DNA nucleotides. The base is the one part that changes.
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