What do you know an organisms parents if it is heterozygous for a certain trait? a. both parents supplied b. the parents had the same traits. c. the parents supplied different alleles. d. the parents had different traits.

Are salt and soap nutrients or toxins for yeast? explain.

Where can dna be found in a prokaryotic cell

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.