Question

Viruses grown in the presence of radioactive phosphorus contained radioactive DNA but not radioactive protein because

• A. DNA contains phosphorus, but protein does not
• B. DNA contains deoxyribose sugar, but protein does not
• C. protein contains radioactive sulphur, but DNA does not
• D. protein contains radiactive carbon, but DNA does not

Answer 1

Answer: (A)

Correct answer is (a) DNA contains phosphorus, but protein does not