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Section 5

Structure of DNA

QuestionAnswer
Define DNA. is a very long molecule made of repeating subunits called nucleotides.
Nucleotides consist of 3 parts- sugar, phosphate group, and a nitrogen base.
What are the 4 nitrogen bases found in DNA ? A- Adenine, C- Cytosine, G- Guanine, T- Thymine
How do the nitrogen bases pair with ? Adenine always pairs with Thymine (A-T), Cytosine always pairs with Guanine (C-G).
Define RNA. is single stranded; contains U's instead of T's
Who developed the double helix model for DNA ? James Watson and Francis Crick
Mutation is any change in the DNA code
Replication is the copying of DNA for the process of cell division
Created by: martingomez134
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