Your research project involves characterizing the expression pattern of a nuclear pore protein. After using immunohistochemistry to fluorescently label the protein, you decide that you would like to capture the data as a 3-D image. Which microscope should you use?
A. confocal microscope
B. scanning electron microscope
C. phase-contrast microscope
D. fluorescence microscope
A. confocal microscope
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Which of the following is a mechanism by which new susceptible individuals enter a population?
A. Birth of new individuals B. Migration of individuals into the population C. Birth of new individuals and migration of individuals into the population D. Enhancement of immune systems through immunization
The diversification of Hawaiian honeycreepers as they colonized islands in the archipelago is an example of ________ speciation
a. sympatric b. allopatric c. parapatric d. allopolyploidy
A correct comparison between a benign and a malignant tumor is that ________.
A. benign tumors are not the result of a failure of a cell cycle control system; malignant tumors are B. benign tumors do not metastasize; malignant tumors do C. benign tumors are composed of cancer cells; malignant tumors are not benign tumors D. do not form lumps; malignant tumors do form lumps
Which form of nucleic acid structure, A-form, B-form, or Z-form, is described by each of these statements?
This right-handed helix is found under normal, physiological conditions. What will be an ideal response?