Francesco Redi from the 1600s observed clusters of flies around pieces of hanging meat
Which of the following activities corresponds with the testing step of
the scientific method?

The means by which a cell transports large molecules out of the cell is called

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.

True or false: the ribosome reads the sequence of codons in mrna.