DNA is coiled into a tight spiral and makes up the ____________ that are the genetic material in a cell
a. genes
b. amino acids
c. enzymes
d. nucleus
e. chromosomes
e
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In the Breathalyzer, ethyl alcohol reacts with ___ ___; this reaction is accompanied by a color change.
Fill in the blank(s) with the appropriate word(s).
What microscope is best to use to view the features of cell organelles?
A. Basic light microscope B. Phase contrast light microscope C. Nomarski process light microscope D. Scanning electron microscope E. Transmission electron microscope
Chemical dyes are used to increase resolution of objects.
Answer the following statement true (T) or false (F)
Which of the following statements is TRUE of disinfectants?
A. They are effective in destroying endospores. B. They are used on living tissue. C. They are used for sterilization. D. They are used on inanimate surfaces. E. They are only effective for short periods of time (seconds to minutes).