Which of the following plant secondary metabolites is used as an antimalarial drug?
A. morphine
B. taxol
C. genistein
D. quinine
E. manihotoxin
D. quinine
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There are no discernible phenotypic effects for an individual with the genotype XYY
A. true B. false
The focus of ethology is on
A. genetic and physiological mechanisms of behavior. B. mammal behavior. C. bird behavior. D. the consequences of behavior. E. behavior in the field.
Whenever a molecule is oxidized, another molecule must be reduced.
a. true b. false
In the experiment by Davis et al., only fibroblast cells that took up the cloned myoD gene differentiated into muscle cells. This is because
A. myoD is the gene for myosin and the presence of myosin converts the fibroblast into a muscle cell. B. MyoD is a transcription factor that shut off fibroblast specific genes, allowing the muscle cell characteristics to show up. C. only those cells contained muscle-cell-specific enhancer sequences. D. MyoA and MyoH are transcription factors that shut off muscle-specific genes. E. MyoD is a transcription factor that turned on muscle-specific genes such as myosin.