Which of the following items is NOT a part of the name of a restriction enzyme?
A. the Gram reaction of the source bacterium
B. the specific epithet of the source bacterium
C. Roman numerals to indicate its order of discovery
D. the strain of the source bacterium
E. the genus of the source bacterium
Answer: A
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If a person is poisoned with cyanide they cannot generate ATP and die within a few minutes. In this scenario, what would happen to sodium and potassium concentrations across a cell membrane?
A. Sodium would be higher outside the cell and potassium would be higher inside the cell. B. Sodium would be higher inside the cell and potassium would be higher outside the cell. C. Sodium and potassium would reach equilibrium. D. Sodium and potassium concentrations would both be higher outside the cell. E. Sodium and potassium concentrations would both be higher inside the cell.
In yeast, START triggers the progression from G1 to S. Which of the following are involved in regulating START?
a. Nutrients b. Mating factors c. Cell size d. All of the above
Hypotension can result from ________ .
a. low potassium b. too little blood protein c. heavy sodium intake d. atherosclerosis e. chronic stress
When a gene is duplicated:
a. it may be lost through mutation. b. it may become nonfunctional through mutation. c. it may gain a new activity. d. All of the above. e. None of the above.