At which synapse in the knee-jerk reflex would you expect to find an IPSP?
A. the synapse between the sensory neuron
and the extensor muscle motor neuron
B. the synapse between the extensor muscle
motor neuron and the extensor muscle
C. the synapse between the sensory neuron
and the interneuron
D. the synapse between the interneuron and
the flexor motor neuron
D
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Which of the following species of Mycobacterium causes a chronic disease of the skin, mucous membranes, and nerve tissue but has not yet been cultivated in vitro?
a. M. paratuberculosis b. M. lepraemurium c. M. phlei d. M. leprae
Most viruses form a capsid around their nucleic acid core. This capsid is composed of
A. proteins. B. monosaccharides. C. glycoproteins. D. lipoproteins.
You breed a black, long-haired rabbit with a white, short-haired rabbit. All of the offspring have long, black hair. If the genes for hair color and length are closely linked on the same chromosome, what would you expect to see in the F2 generation?
A. 15 black, long-haired: 1 black, short-haired: 1 white, long-haired: 5 white, short-haired B. 3 black, long-haired: 1 white, short-haired C. 9 black, long-haired: 3 black, short-haired: 3 white, long-haired: 1 white, short-haired D. 3 black, long-haired: 9 black, short-haired: 9 white, long-haired: 1 white, short-haired E. All long-haired black
Cytokinesis in plant cells differs from cytokinesis in animal cells because
a. the contractile protein, actin, is important only in plant cells. b. a contractile ring forms only in plant cells. c. in plant cells, the cell plate must also divide into two parts. d. plant cells have a rigid cell wall. e. there is no difference.