Which reaction breaks down large molecules into
smaller molecules?
a. synthesis
b. cleavage
c. condensation
d. polymerization
e. both cleavage and condensation
Answer: b
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Which of the following statements about the modified Ti plasmid used to make transgenic plants is NOT accurate?
A. It is derived from a plasmid found in the bacterium Agrobacterium tumefaciens. B. It causes crown gall formation. C. It contains a screenable marker gene. D. It contains a T-DNA region that integrates into the plant cell's genome. E. It contains unique restriction enzyme recognition sites for inserting a gene of interest.
The product of chromosome duplication is
a. two chromatids. b. two nuclei. c. two daughter cells. d. two spindles.
Excess proteins are converted directly to
a. glucose. b. fatty acids. c. ammonia. d. amino acids. e. glycogen.
How is pneumonic plague transmitted?
A. inhalation of respiratory aerosols from a person infected with Yersinia pestis B. bite of a flea carrying Yersinia pestis C. fomite contact D. contact with the blood of a person infected with Yersinia pestis E. bite of a tick carrying Yersinia pestis