A drug that causes potassium to leak out of a neuron, increasing the positive charge on the outside, would __________.
A) cause the cell to release its neurotransmitter
B) inhibit transmission of nerve signals by the neuron
C) make it easier to trigger action potentials in the neuron
D) act as a stimulant
E) speed up nerve signals traveling the length of the cell
Answer: B) inhibit transmission of nerve signals by the neuron
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What is significant about the findings from "split brain" patients studied by Roger Sperry and his collaborators?
A. These studies revealed that the right and left hemispheres both function primarily to enable people to understand and produce language. B. These studies revealed that the right and left hemispheres both function primarily to enable people to describe qualities of objects such as shape and texture. C. These studies revealed that the left hemisphere functions primarily in understanding and producing language while the right hemisphere functions instead in describing qualities like shape and texture. D. These studies revealed that the right hemisphere functions primarily in understanding and producing language while the left hemisphere functions instead in describing qualities like shape and texture.
Tetrad analysis shows that crossing-over occurs at the four-strand stage (i.e., after replication) because, when two genes are linked,
A) NPD > T. B) T > NPD. C) T > PD. D) PD > NPD. E) PD > T.
In humans, the front of the larynx is commonly referred to as
a. the voice box. b. the Adam's apple. c. the food pipe. d. both a and b.
List and describe the three types of cartilage.
What will be an ideal response?