A researcher who detects a higher-than-normal amount of interferon in a laboratory rat would correctly conclude that
A. the rat has, or recently had, a viral infection.
B. cancerous cells are present in the rat.
C. the rat’s diet is deficient in calcium.
D. monocytes are differentiating into macrophages in the rat’s bloodstream.
Answer:A
A researcher who detects a higher-than-normal amount of interferon in a laboratory rat would correctly conclude that
A. the rat has, or recently had, a viral infection. B. cancerous cells are present in the rat. C. the rat’s diet is deficient in calcium. D. monocytes are differentiating into macrophages in the rat’s bloodstream.