Which one of the following is false:
1. One DNA molecule can include 4 different nucleotides in its structure
2. DNA uses the nitrogenous base uracil
3. DNA is a nucleic acid
4. DNA molecules have a sugar phosphate backbone
5. DNA uses the sugar deoxyribose
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Uracil is a pyrimidine base, but is only found in RNA, not DNA so, the correct answer is 2..
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