If the DNA molecule resembles a twisted ladder, which chemical units form the sides of the ladder?

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    pairs of nitrogenous bases
    alternating deoxyribose sugar and phosphate groups
    alternating ribose sugar and phosphate groups
    amino acids and phosphates
    polypeptide chains
asked May 27, 2013 in Anatomy & Physiology by anonymous
    

1 Answer

0 votes
alternating deoxyribose sugar and phosphate groups
answered May 28, 2013 by NewSky ~Expert~ (2,450 points)



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