Which is true of iodine?
A. It does not readily kill endospores.
B. It may be used as an antiseptic or as a disinfectant.
C. It is important to use it at the recommended dilution.
D. It is usually found as tinctures or iodophors.
E. All of the choices are true.
E
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Acid-fast cell walls contain high concentrations of
a) teichoic acid. b) peptidoglycan. c) pseudomurein. d) mycolic acid.
Imaginal discs are:a
found in mammalian cells and control gene activation in mature somatic cells. b. paired groups of undifferentiated cells that are precursors of adult structures in Drosophila. c. found in plant cells and assist in the development of the flower. d. part of the salivary gland of Drosophila. e. found in Drosophila ovary cells and represent inactivated X chromosomes.
Assuming you are testing a null hypothesis (two-tailed) about the population mean and determining whether to reject the null hypothesis based on the t-stat at the 95% confidence level, which t-stat would warrant rejecting the null hypothesis?
A. 1.6 B. 3 C. -1.4 D. 1.4
The insertion of water (H+ and OH?) into an enzymatically split molecule is
a. hydrolysis. b. dehydration synthesis. c. condensation. d. cleavage. e. polymerization.