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. What will be an ideal response?
Concepts to Consider: Construction of an appropriate experiment with appropriate controls;
use of the radioisotope to label DNA; isolation of the DNA using an unspecified technique;
measuring radioactivity of the isolated DNA; comparing the treatment and control groups;
making a conclusion.
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What is the advantage to having various types of chlorophylls and accessory pigments for the photosynthetic process?
A) It allows for a variation in color amongst plants. B) It allows for light in many wavelengths to be utilized for photosynthesis. C) It allows light to be harvested specifically in a step-wise manner. D) It shifts the equilibrium of photosynthesis toward the formation of products. E) both choices C and D
What statement deals with an aspect of experimentation but with the incorrect explanation?
What will be an ideal response?
Blastomycosis results from
A) inhalation of spherules. B) inhalation of respiratory droplets. C) inhalation of fungal spores. D) contact with fomites. E) contact with infected sputum.
Changes in the physical structure of a chromosome; includes deletions, duplications, inversions, and translocations.
What will be an ideal response?