13. a chart comparing the base sequences of homologous segments of dna from various
provided which pair of organisms have the most recent common ancestor? explain.

Give an example of a trait that is controlled by more than one gene.

Is genetic diversity the same as genetic variation?

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.