Which of the following devices is used for PCR?
A. an electrophoresis chamber
B. a gene gun
C. a DNA sequencer
D. a thermocycler
E. a nucleic acid creation machine
Answer: D
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When wheat stem rust infects a field it can reduce the crop yield by ________
a. 70% b. 15% c. 85% d. 95% e. 25%
Red algae yield which of these commercial
products? a. carrageenan b. nori wrappers for sushi c. algin d. agar e. all EXCEPT algin
Which federal agency oversees, regulates, and monitors the safety of biotech and pharmaceutical products and medical devices during consumer use?
A) National Institutes of Health B) U.S. Department of Agriculture C) Environmental Protection Agency D) Food and Drug Administration E) National Science Foundation
The stripes in skeletal muscle are due to the presence of
A. intercalated disks. B. the branching of cells. C. multiple nuclei per cell. D. actin and myosin filaments. E. tendons connecting the muscle to bone.