Final answer:
False. DNA contains sulfur, and proteins contain phosphorus.
Step-by-step explanation:
No, the statement is false. DNA does indeed contain sulfur, and proteins contain phosphorus.
Proteins are macromolecules composed of amino acids, and some amino acids, such as methionine and cysteine, contain sulfur. Therefore, proteins do have sulfur.
On the other hand, DNA is composed of a sugar-phosphate backbone and nitrogenous bases, and phosphorus is part of the phosphate group in DNA. So, DNA does have phosphorus.