Biotech barnyard animals produce which of the
following human products?
a. a protein that treats cystic fibrosis
b. a protein that counters the effects of a heart
attack
c. interleukin-2 that triggers divisions of certain
human immune cells
d. a protein that treats blood-clotting disorders
e. all of these
Answer: e
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Growth of pathogens in a food generally does not result in perceptible changes in the quality of the food but the ingestion of this food can result in
A. spoilage. B. foodborne illness. C. aging. D. toxin infection.
Consider a living plant cell in a living leaf that has a higher water potential than the fluids surrounding
the cell. In such a situation there should be
a. a net flow of water out of the cell. b. gain of water by the cell only if the cell's pressure potential is high enough. c. no net flow of water into or out of the cell. d. a net flow of water into the cell. e. gain of water by the cell only if the cell's pressure potential is low enough.
All of the following are true of every cell of the early
human embryo EXCEPT that a. each has the same genes as all the others. b. each can give rise to an entire human. c. they are undifferentiated. d. all will differentiate alike. e. all have maternal messages.
A person goes to the doctor and is told his blood pressure is 90/60 and his pulse is 80. Which of the following is FALSE?
A) Mean arterial pressure is 70 mm Hg. B) Diastolic pressure is 60. C) Systolic pressure is 90 mm Hg. D) Pulse pressure is 80 mm Hg. E) Heart rate is 80.