What symptoms are shared by knockout mice with nonfunctional DvII genes and humans with certain psychiatric
disorders?
What will be an ideal response?
ANSWER: Knockout mice with nonfunctional DvII genes do not build nests or socialize with other mice.
These mice also have an intensified startle response. Humans with certain psychiatric
disorders may also startle easily, and often do not display appropriate social behavior.
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Why are public health officials concerned about smallpox being used as a biological weapon? Give several reasons in your answer
What will be an ideal response?
At what neuron location does summation occur?
a. dendrites b. cell body c. axon hillock d. Schwann cells e. axon terminals
What is the raw material for photosynthesis?
a. sugar and water b. sugar and oxygen c. carbon dioxide and oxygen d. carbon dioxide and water
The outcome of cleavage during embryonic development is the production of a
A. substantially larger embryo. B. gastrula. C. blastula. D. neurula. E. None of the choices are correct.