30 percent<span> (The </span>20 percent<span> of thymine would pair with </span>20 percent<span> of adenine for a total of </span>40 percent<span> A and T. 100-40 = </span>60 percent<span> remaining guanine and cytosine nucleotides. 60 / 2 = </span>30 percent<span> guanine and </span>30 percent<span> cytosine.) A plant's DNA has nucleotides that are 20% thymine.
