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Study%20Questions-Chapter-4-1 - BIOL 1305 Fall 2010(CRN...

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BIOL. 1305 – Fall 2010 (CRN# 12682) Study Questions Chapter 4: Nucleic Acids and the Origin of Life 1. The “backbone” of a nucleic acid molecule is made of a. nitrogenous bases. b. alternating sugars and phosphate groups. c. purines. d. pyrimidines. e. nucleosides. 2. Which of the following is not a difference between DNA and RNA? 3. According to the principle of complementary base pairing, purines always pair with 4. All of the following bases are found in DNA except 5. The diversity in DNA molecules is due to a. physical shape differences of the molecule. b. functional differences in DNA molecules.
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