Why did hershey and chase label the viral dna with radioactive phosphorous and not radioactive sulfur?
dna contains phosphorus and no sulfur.
proteins contain phosphorus and no sulfur.
dna contains sulfur and little phosphorus. proteins contain sulfur and little phosphorus.

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger