The regulatory genes are not part of the lac operon.
Krypton helps geologist determine the absolute age of a rock
Answer: protists
Explanation:
Only DNA contains the base, thymine, which binds with adenine. Whereas RNA contains the base, uracil, which binds with adenine. Also the structure of their sugars are different: Deoxyribose, in DNA, contains one less oxygen than RNA's ribose sugar.