B 1/4 because i seen the question and answer on my test and got it correct
Answer
Hi,
A. Radioactive markers
Explanation
Hershey and Chase used specific radioisotopes to form a trace of the two important components of the virus in its life cycle. The 32P was used to identify the DNA while the 35s labeled the proteins.DNA strands have a sugar phosphate where as protein contains sulfur.
Best wishes!
There are four major classes of biological macromolecules:
carbohydrates.
lipids.
proteins.
nucleic acids.
The answer would be letter B.
Vitamin D , better skin, healthier hair, etc.
