<classify> Wɔ yɛɛ nsɔhwɛ mmienu a ɛne sɛ wɔde radioactive phosphorus hyɛɛ DNA no agyirae wɔ mmoawammowa mu anaa wɔde radioactive sulfur hyɛɛ mmoawammoawa no protien nnuanennuru agyirae.  <topic>: sciencetechnology 