What happens if a neuron is stimulated enough midway in an axon to trigger an action potential?
A) The nerve impulse would go both directions from the stimulus point, but only the axon end could transfer the message trough neurotransmitters to another neuron.
B) Since neuron transmission is one-way, the nerve impulse would only be transmitted to the end of the axon and then through neurotransmitters to the next neuron.
C) The nerve impulse could not be transmitted because it must be initiated at the dendrite end of a neuron.
D) The nerve impulse would go both directions and the dendrite end would be stimulated to send a second message through this neuron.
A
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Which of the following is true of the integration of a viral genome into the host chromosome?
A. Integration begins the process of host chromosome degradation. B. Integration of the viral genome is a form of site-specific recombination. C. The enzymes that are used in integration are nonspecific for the virus and its host. D. All of the choices are correct.
What is the defining characteristic of the Opisthokonts?
a. archaic forms of plastids b. pseudophodia c. single posterior flagellum d. calcium carbonate shells
If you awoke and looked out your window and saw a gopher shaking, what might be true about the temperature outside?
A. It is very cold, and the gopher is shivering to help thermoregulate. B. It is very hot, and the gopher is trying to increase perspiration. C. It is hot and dry, causing the gopher to have kidney problems. D. Temperatures are moderate, and the gopher may be trying to attract a mate. E. None of the answer choices is correct.
During bacterial translation the ribosome recognizes the AUG start codon by?
a. binding to the polyA tail of the RNA b. binding to the 5'cap of the RNA and scanning along the mRNA until it finds an AUG codon in a Kozak consensus c. binding to the 3'UTR of the RNA d. recognizing base pairing between the Shine-Dalgarno sequence and the 16S rRNA