We can estimate the relative mobility of a population of molecules along the surface of a living cell by fluorescently labeling the molecules of interest, bleaching the label in one small area, and then measuring the speed of signal recovery as
molecules migrate back into the bleached area. What is this method called? What does the abbreviation stand for?
(a) SDS
(b) SPT
(c) GFP
(d) FRAP
(d), fluorescence recovery after photobleaching
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The substitution of one base pair for another in double-stranded DNA is called a(n):
A. silent mutation. B. risk factor. C. allele. D. heterozygote advantage. E. point mutation.
Which of the following best defines demography?
a. statistical study of population changes b. qualitative study of population features c. statistical study of human populations d. qualitative study of life expectancy
occurs within ___ minutes to allergen. (immunological disorders)
Fill in the blank(s) with the appropriate word(s).
Sound waves travel within the ear and cause hair cells of the organ of Corti to rub against the ____, initiating nerve
impulses to the brain. a. basement membrane b. basilar membrane c. tectorial membrane d. tympanic membrane e. plasma membrane