page3 9dna is composed of an ordered series of four chemical structures called nucleotide n...

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Page 1: page3 9DNA is composed of an ordered series of four chemical structures called nucleotide n bases": adenine, thymine, cytosine and guanine, which are abbreviated A, T, C
Page 2: page3 9DNA is composed of an ordered series of four chemical structures called nucleotide n bases": adenine, thymine, cytosine and guanine, which are abbreviated A, T, C