The enzyme ?-kinase adds phosphates to specific proteins.
a. true
b. false
a. true
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Lymph nodes normally contain ____, which function to engulf invading organisms
a. erythrocytes b. macrophages c. platelets d. neutrophils e. basophils
Distances between linked genes in centimorgans (cM) can be converted directly to the physical distances between them
on the chromosome. a. True b. False
Which of the following key chemical mediators in inflammation is not matched to its function?
A) kinin: induces vascular changes, stimulate pain receptors, and assist in blood-clot cascades B) histamine: induces vascular changes C) prostaglandins: induce vascular changes and stimulate pain receptors D) TNF-?: enhances inflammation E) thromboxanes: reduce pain receptor stimulation and reduces fever
The process of evolutionary changes that result in formation of new species and groups of species is called
A. serial evolution. B. temporal evolution. C. a combination of temporal and serial evolution. D. artificial selection. E. macroevolution.