Which of the following places the steps of the Gram stain in the correct order? 1-Alcohol-acetone 2-Crystal violet 3-Safranin 4-Iodine
A) 1-2-3-4
B) 2-1-4-3
C) 2-4-1-3
D) 4-3-2-1
E) 1-3-2-4
C
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Which of the following is TRUE of fate mapping?
A. It determines the ultimate structure/function of a particular cell type during embryonic development. B. It maps the genes of an embryo. C. It assesses the quality of a developing embryo. D. It maps the proteins within a morphogenic field. E. It determines hereditable disorders in the embryo.
Which of the following is not true about nematodes such as C. elegans?
a. The mouth develops after the anus. b. It has three germ layers. c. It undergoes cell differentiation. d. All of the following are true.
A protozoan having a flagellum would be classified in the genus ________.
A. Plasmodium B. Entamoeba C. Toxoplasma D. Enterobius E. Trypanosoma
Which of the following is false regarding water's specific heat?
A) The specific heat of water is 1.0 calorie per gram. B) Heat applied to water must initially break a number of hydrogen bonds. C) Water's high specific heat has a temperature-buffering effect. D) Water gains and loses heat more slowly than most other liquids do. E) The specific heat of water is similar to that of most liquids.