What type of microscopy uses a laser to excite fluorophores in just a thin “slice” through a cell?

a. confocal microscopy
b. fluorescence microscopy
c. phase contrast microscopy
d. scanning electron microscopy
e. Nomarski differential interference-contrast microscopy


a

Biology & Microbiology

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Describe phylogenomics and its contributions to phylogenetic relationships between protists and other

eukaryotes.

What will be an ideal response?

Biology & Microbiology

Different responses of the same hormone, or antiestrogen agent, is due to

a. differences in luciferase activity. b. receptor sites for estrogen. c. differences in gene amplification. d. cyclic AMP levels. e. receptors in the hypothalamus.

Biology & Microbiology

Individual species will continually evolve as a result of:

a. coevolution. b. convergent evolution. c. punctuated equilibrium. d. natural selection. e. gradualism.

Biology & Microbiology

Bacterial ____ cause systemic symptoms such as fever, whereas bacterial ____ cause more specific maladies

a. phages; prophages b. prophages; phages c. exotoxins; phages d. exotoxins; endotoxins e. endotoxins; exotoxins

Biology & Microbiology