Biology Study Set 14
Quiz 2 :
Atoms and Molecules
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Q50 Q50 Q50
When a small amount of hydrochloric acid (HCl) is added to a solution of Na2HPO4, the pH of the solution does not change markedly.The pH also does not change drastically when a small amount of sodium hydroxide (NaOH) is added to this same solution.Based on these observations, the compound Na2HPO4 is:
Q83 Q83 Q83
As a researcher, you are charged with determining the side effects of a new drug.From previous observations, you suspect that this drug reduces the rate of DNA production (replication) within skin cells of patients using the drug.With the following materials, design an experiment that would answer your questions about the effect of the drug on DNA production.You know that: DNA contains phosphate groups.You have: radioactive isotopes of phosphate (32P), skin cell cultures from various patients, the drug in question, and a device that measures radioactivity.