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Biology 13 Online
OpenStudy (anonymous):

DNA is made of two chains of nucleotides. Which type of bonds hold the chains together?

OpenStudy (anonymous):

A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of these chains is known as a DNA chain, or a DNA strand. Hydrogen bonds between the base portions of the nucleotides hold the two chains together http://www.ncbi.nlm.nih.gov/books/NBK26821/figure/A598/?report=objectonly

OpenStudy (anonymous):

sarah786, thank you for your answer! :)

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