If cells are grown in a medium containing radioactive 35S, which of these molecules will be labeled?
A) phospholipids
B) nucleic acids
C) proteins
D) amylose
E) proteins and nucleic acids

Question

Quizplus · Accepted Answer

Proteins contain sulfur, which is present in 35S, so they will be labeled. Neither nucleic acids, phospholipids, nor amylose contain sulfur, so they will not be labeled.

If Cells Are Grown in a Medium Containing Radioactive 35S