Imagine that 1 milliliter of an experimental drug diluted in a saline solution is injected into 20 pregnant mice to determine possible side effects. Which of the following is a suitable control for this experiment?
A) 20 pregnant mice injected with 1 milliliter of saline
B) 20 male mice injected with 1 milliliter of the drug
C) 20 non-pregnant mice injected with 1 milliliter of the drug
D) 20 pregnant mice injected with 2 milliliters of the drug
E) 20 male mice injected with 1 milliliter of saline

Question

Quizplus · Accepted Answer

A suitable control for this experiment would be 20 pregnant mice injected with 1 milliliter of saline. This control group would help isolate the effects of the drug by comparing it to a group that receives a treatment identical in every way except for the presence of the experimental drug.

Imagine That 1 Milliliter of an Experimental Drug Diluted in a Saline