Which of the following microbes has been genetically engineered to contain a protein that helps protect crops from freezing?
A. Deinococcus radiodurans
B. Bacillus thuringiensis
C. Pseudomonas
D. Salmonella
E. Escherichia coli
Answer: C
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Phagocytosis
A. is the ingestion of particles and may be performed by animal cells. B. is the ingestion of particles and may be performed by bacteria. C. is the secretion of proteins. D. is the formation of a lysosome. E. is the ingestion of particles and may be performed by bacteria AND is the formation of a lysosome.
To control pathogenic and disease-causing organisms, spices can be fumigated using ________.
A. ammonium gas B. chlorine gas C. heavy metals D. ethylene oxide
Which of the following chemical reactions are common in cellular respiration?
a. reduction/oxidation b. bimolecular/trimolecular c. exothermic/endothermic d. acid/base
Carbon-14 has the same:
A) number of protons but more neutrons than carbon-12. B) atomic number and atomic mass as carbon-12. C) atomic number and, therefore, the same number of neutrons as carbon-13. D) atomic mass as both carbon-12 and carbon-13. E) atomic mass and, therefore, the same number of neutrons as carbon-12.