Bio 12 DNA_1 quiz.txt
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What does DNA stand for?
What is DNA's primary function
Stores and transfers info
What are the repeating subunits called that make up DNA?
What is the differenes between purine and a pyrimidine
Purines are doubled . Both pair up with their opposite.
The model of DNA is known as a ________ becayse it is composedof two ________ chains wrapped around eachother
Wgat makes up the "steps" of a DNA molecule
Hydrogen bonds togather the nitrogen bases
What type of bonds hold the DNA bases togather
What makes up the "backbone" of the DNA molecule?
Phosphate and the sugar
Name the 4 nitrogen bases
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