38. What do you think about the threat of nuclear war? Should that deter us from expanding our own nuclear energy? Should we be worried? Why or why not? 2+ sentences (opinion question) the website is
https://www. nti. org/learn/countries/north-korea/

help me please please help me please​

The hershey and chase experiments involved the preparation of two different types of radioactively labeled phage. which of the following best explains why two preparations were required? a. the bacteriophage used in the experiments was a t2 phage. b. it was necessary that each of the two phage components, dna and protein, be identifiable upon recovery at the end of the experiment. c. each scientist had his own method for labeling phage, so each conducted the same experiment using a different isotope. d. establishing the identity of the genetic material required observation of two phage generations.