In a CE separation, the STR is identified by comparison to a standard ___.
What will be an ideal response?
ladder
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A molecule binds and blocks the active site of an enzyme so that there can be no normal binding between the enzyme and its substrate. This molecule is called a(n) ___________.
a. irreversible inhibitor b. uncompetitive inhibitor c. reversible inhibitor d. competitive inhibitor e. none of the above.
The reason that some individual hormones have so many different effects is that
a. they influence gene transcription. b. they trigger a second messenger system that produces a cascade of effects. c. there are a great many different cells in different tissues that have specific receptors for the hormone. d. the hormone is carried throughout the body and only a small amount is needed to produce its effect. e. they are realeased in different concentrations.
Halogen-containing organic compounds persist in the environment for approximately five years
a. True b. False
In the tropical latitudes, the length of the dry season increases with distance from the equator
Indicate whether the statement is true or false