What measures can the average citizen take to reduce the likelihood of infection with E. coli or other foodborne organisms?
What will be an ideal response?
Cook meat thoroughly. Before eating, wash produce with food-grade soap, not just water.
Avoid irrigation of gardens with water contaminated by manure.
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Which of the following immunogens is MOST effective as a vaccine?
A) chemically inactivated bacteria B) dead virus C) live virus D) toxoid
The expression of only one allele of a gene and silencing of the other allele, all based on which parent
contributed each allele, is
a. sex-linked inheritance. b. uniparental inheritance. c. cytoplasmic inheritance. d. genomic imprinting. e. maternal inheritance.
The immune system's attack on the body's own
cells a. is an autoimmune response. b. results in anaphylactic shock. c. is a type of acquired immune deficiency syndrome. d. is due to the inactivation of helper T cells. e. is due to an error in the production of MHC markers.
If red blood cells cultured in an isotonic medium are placed in distilled water, they will most likely:
A. become dormant B. shrivel C. remain unchanged D. divide E. swell and lyse