In temperate deciduous forest, light penetration to the ground is greater during summer than during winter
Indicate whether the statement is true or false
FALSE
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Messenger RNAs that contain no stop codons due to a frameshift mutation are eliminated by
A) nonstop decay. B) directed RNase activity. C) nonsense-mediated decay. D) error-mediated repair. E) none of the above
The saltwater aquarium strain of Caulerpa taxifolia
a. thrives on sandy or rocky shores and in mud. b. outcompetes endemic species. c. is now illegal to import into the United States. d. produces a toxin that poisons invertebrates and fish that might keep it in check. e. includes all of these descriptions.
During active breathing, bursts of action potentials are observed to occur
A) synchronously in the inspiratory and expiratory motor neurons. B) exclusively in the inspiratory motor neurons. C) exclusively in the expiratory motor neurons. D) asynchronously in the inspiratory and expiratory motor neurons. E) simultaneously in the inspiratory and expiratory motor neurons.
As the initial cleavage divisions proceed in a frog embryo, which of the following results?
A. the embryo increases in size B. The cytoplasmic content of the individual cells increase C. The yolk mass increases in size. D. Individual cells become smaller E. Individual cells become haploid