Bacteria that have properties of both the donor and recipient cells are the result of
A. UV light.
B. SOS repair.
C. frame shift mutations.
D. genetic recombination.
D
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Answer the following statements true (T) or false (F)
1. One gram of hydrogen, which has an atomic mass of 1, would have fewer atoms than 1 gram of carbon that has an atomic mass of 12. 2. Isotopes are different forms of the same element. 3. Sulfur 35 (35S) is an isotope of 32S. These elements differ in their number of neutrons. 4. Helium is an inert gas that rarely reacts with other elements because it has the maximum number of valence electrons in its outer shell.
The charge difference between the inside and outside of a cell that is not sending any impulses is known as its _______
Fill in the blank(s) with the appropriate word(s).
Cell proliferation in culture is normally limited by
A) cytophagy. B) quorum sensing. C) contact inhibition. D) competition. E) nutrient limitation.
When water ionizes, it produces equal amounts of hydrogen and hydroxide ions that can reassociate with each other. The pH of water is: 5-9-2013
A. 3 B. 4 C. 5 D. 6 E. 7