Bio 12 DNA_1 quiz.txt

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Author:
jtoner2009
ID:
190584
Filename:
Bio 12 DNA_1 quiz.txt
Updated:
2012-12-25 20:59:10
Tags:
bio
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Description:
for test
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  1. What does DNA stand for?
    Dexoribsomenic acid
  2. What is DNA's primary function
    Stores and transfers info
  3. What are the repeating subunits called that make up DNA?
    nucleotides
  4. What is the differenes between purine and a pyrimidine
    Purines are doubled . Both pair up with their opposite.
  5. The model of DNA is known as a ________ becayse it is composedof two ________ chains wrapped around eachother
    • Double heliex
    • Strand
  6. Wgat makes up the "steps" of a DNA molecule
    Hydrogen bonds togather the nitrogen bases
  7. What type of bonds hold the DNA bases togather
    Hydrogen bonds
  8. What makes up the "backbone" of the DNA molecule?
    Phosphate and the sugar
  9. Name the 4 nitrogen bases
    • Adenine
    • Thymine
    • Cytosine
    • Guanine

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