The diagram illustrates the bacteriophages used in the Hershey-Chase experiment.
Bacteriophage labeled
with phosphorus-32
Bacteriophage labeled
with sulfur-35
What was the purpose of marking the bacteriophages with phosphorus-32 and
sulfur-35?
a. to track the movements of DNA and sugars
b. to track the movements of DNA and proteins
c. to remove DNA and sugars from the bacteriophages
d. to combine DNA and proteins into a single molecule

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

Anurse is preparing to administer ampicillin 500 mg in 50 ml of dextrose 5% in water (d5w) to infuse over 15 min. the drop factor of the manual iv tubing is 10 gtt/ml. the nurse should set the manual iv infusion to deliver how many gtt/min? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.)

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)