Which of the following may NOT be considered a tastant?
a. salt
b. acids
c. plant alkaloids
d. sugars
e. umami
E
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Thermoplasma contains an extremely small genome complexed with a highly basic DNA-binding protein
Indicate whether the statement is true or false.
Which of the following statements are not true of hormone actions in plants?
A. Most plant hormones are effective in extremely low concentrations. B. Plant hormones influence cell growth and differentiation. C. Plant hormones may alter patterns of gene expression and rates of cell division. D. Plant hormones act independently and do not affect one another's actions. E. Plant hormones play a central role in plant development. Answer Point Value: 1.0 points
Which of the following is a character in
phylogeny? a. number of digits b. DNA sequence for a gene c. amino acid sequence of an enzyme d. number of petals e. all of these
The cell wall component algin is
a. found in the brown algae. b. used in the production of ice cream. c. used as a medium on which microorganisms are grown. d. both a and b.