Final answer:
The most correct statement regarding nucleic acids is: B) DNA contains uracil.
Step-by-step explanation:
The most correct statement regarding nucleic acids is: B) DNA contains uracil. This statement is incorrect. DNA (deoxyribonucleic acid) actually contains thymine, not uracil. RNA (ribonucleic acid), on the other hand, contains uracil. Thymine and uracil are nitrogenous bases that pair with adenine in DNA and RNA, respectively. To provide additional clarification, option A is incorrect as RNA is typically a single-stranded molecule, not double-stranded. Option C is also incorrect as DNA, not RNA, is primarily involved in heredity. Option D is inaccurate since DNA stands for deoxyribonucleic acid, not ribonucleic acid. Understanding these distinctions is fundamental to grasp the roles and characteristics of nucleic acids in cellular processes.