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 saline
C) 20 non-pregnant mice injected with 1 milliliter of the drug
D) 20 male mice injected with 1 milliliter of the drug
E) 20 pregnant mice injected with 2 milliliters of the drug
A
You might also like to view...
A consensus sequence in the untranslated leader sequence of a prokaryotic mRNA, which serves as a ribosome binding site is called the ________ sequence.
What will be an ideal response?
When a fist clenches to grasp a pencil, which neurotransmitter is most likely involved?
a. norepinephrine b. serotonin c. dopamine d. acetylcholine e. glutamate
Who first described cells?
A. Leeuwenhoek B. Hooke C. Linnaeus D. Darwin E. Golgi
Place the following in proper sequence regarding activation of the cell-mediated response: (1 ) dendritic cell migrates to lymph node, (2 ) T cells divide rapidly, (3 ) dendritic cell ingests pathogen, (4 ) CD4 and CD8 cells dock with dendritic cell, (5
) dendritic cell presents antigen on its surface. A) 3, 1, 5, 2, 4 B) 3, 5, 1, 4, 2 C) 5, 3, 1, 2, 4 D) 1, 2, 3, 4, 5 E) 4, 3, 1, 5, 2