E. coli O157:H7, a common foodborne pathogen, causeskidney failure and even death due to the production of:

Question 40 options:

	endotoxin
	exotoxion
	verotoxin (i.e.,shiva-like toxin)
	high fever

Question 41 (1.25 points)

Which bacterial pathogen is NOT be transmitted byperson-to-person direct contact?

Question 41 options:

	Staphylococcus aureus
	Streptococcus pyogenes
	Neisseria gonorrhea
	Chlamydia trachomatis

Of the viral infections listed below which one is NOTtransmitted through direct person-to-person contact?

Question 42 options:

	HPV
	HSV-1 and 2
	Hepatitis B
	Rubella

Question 43 (1.25 points)

Genetically engineered microbes are used to produce which of thefollowing?

Question 43 options:

	some antibiotics
	biofuels including ethanol and hydrogen
	enzymes that break down petroleum-based pollutants
	all of the above

Question 44 (1.25 points)

_________ refers to illness caused by to consumption of foodcontaminated with viable bacterial populations, whereas ________refers to the illness due to ingestion of food containing bacterialtoxins.

Question 44 options:

	food infection / food poisoning
	food poisoning / food infection
	Both states refer to food poisoning.
	Both states refer to food infection

The most common way to quantify microbes from food and dairysamples is by:

Question 46 options:

	plate / viable count
	ELISA
	fluorescent antibody test
	turbidity

Question 47 (1.25 points)

If an antibiotic disables the ability of bacterial ribosomes torecognize start codons, which process is disrupted?

Question 47 options:

	transcription
	translation
	replication
	supercoiling

Question 48 (1.25 points)

Which of the following can facilitate spread of a common-sourceepidemic?

Question 48 options:

	sneezing
	sharing a beverage glass
	contaminated lettuce
	tick bites