The enzyme ?-kinase adds phosphates to specific proteins.

a. true
b. false


a. true

Biology & Microbiology

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Lymph nodes normally contain ____, which function to engulf invading organisms

a. erythrocytes b. macrophages c. platelets d. neutrophils e. basophils

Biology & Microbiology

Distances between linked genes in centimorgans (cM) can be converted directly to the physical distances between them

on the chromosome. a. True b. False

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology