Why did alfred hershey and martha chase choose to use bacteriophages in their research?

a) bacteriophages are made up of dna surrounded by a protein cast.

b) bacteriophages break bacterial cells into basic components.

c) bacteriophages contain radioactive sulfur and phosphorus.

d) all of the above.

advantage of using stem cells in medical research:

1.       it provides medical benefits in the fields of therapeutic cloning and regenerative medicine.

2. it provides great potential for discovering treatments and cures to a variety of diseases including parkinson disease, spinal cord injuries, diabetes, alzheimer’s disease and many more.

3. limbs and organ could be grown in lab from stem cells and then used in transplant or treat illness.