Which of the following is an example of bioremediation?
A. Use of Bacillus thuringiensis to kill crop-eating insects
B. Use of Saccharomyces cerevisiae to make wine
C. Use of cowpox to vaccinate against smallpox
D. All of the above
Ans: A. Use of Bacillus thuringiensis to kill crop-eating insects
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What happens to pyruvate during the process of fermentation?
A. It is oxidized to ethanol. B. It is reduced to ethanol. C. It is converted to acetyl Co-A. D. It is oxidized to lactic acid. E. It gets converted to pyruvic acid.
The association of four subunit peptides in a fully functional molecule of hemoglobin is a good example of ____ protein structure
a. primary b. secondary c. tertiary d. quaternary e. aggregate
In a bacterial species, 20% of the bases in its DNA are C. What percent of the bases are G?
A) 80% B) 40% C) 20% D) 10%
The cells of unicellular organisms are
A. Specialized to perform different tasks B. Able to carry out all of the functions necessary for life C. Unable to respond to changes in their environment D. Larger than those of multicellular organisms