______ are produced by leukocytes and fibroblasts. It inhibits virus replication and cell division and increases the action of certain lymphocytes that kill other cells.
A) Cytokines
B) Interferons
C) Chemokines
D) TNF
Answer: B) Interferons
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The majority of bony fishes show the ____ reproductive strategy
a. viviparous b. oviparous c. internal fertilization d. ovoviviparous
What regulates the rate of production of cellular proteins within each cell?
A) redundancy in the genetic code B) frameshift mutations C) gene expression D) ambiguity in the genetic code
Antibiotic reistance that results from altered cellular physiology and structure caused by changes in a microorganisms usual genetic makeupp is known as
A. Environmentally medicated ersistance B. Inherant resistance C. intrisic resistance D. acquired resistace
What is the metabolic abnormality that underlies the characteristic symptoms of diabetes mellitus?
A) a failure of the kidney tubules to reabsorb enough glucose from the urine B) an inability of the body's cells to switch from glucose metabolism to fat metabolism between meals C) an inability of the body's cells to retain glucose they have absorbed from the blood D) an inability of the body's cells to absorb enough glucose from the blood