Final answer:
The false statement is that Uracil is one of the bases found in DNA, since uracil is actually found in RNA, not DNA.
Step-by-step explanation:
Based on the statement "These are all bases found in DNA," the statement that is FALSE is Uracil is one of the bases found in DNA. In DNA, the nitrogenous bases are adenine (A), cytosine (C), guanine (G), and thymine (T). Adenine pairs with thymine, and cytosine pairs with guanine, following the base-pairing rules where a purine always pairs with a pyrimidine.
Adenine and guanine are indeed purine bases in DNA, which is a true statement. As for uracil, it is not found in DNA; it is instead found in RNA, where it pairs with adenine, replacing thymine.