One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered?
A. Endocrine
B. Synaptic
C. Autocrine
D. Direct contact
E. Paracrine
Answer: D
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The occipital lobe of the brain is responsible for
a. speech. b. memory. c. smell. d. coordination of movement. e. vision.
In plant cells, cytokinesis is accomplished by the formation of a(n)
a. aster. b. membrane furrow. c. equatorial plate. d. cell plate. e. spindle.
The contents of a bottle labeled "Tincture of iodine" is
A) an alcohol solution of iodine. B) a variety of organic compounds containing iodine. C) also known as betadine. D) a mixture of iodine and chloramine. E) a detergent solution of iodine.
In DNA replication,
A) parental DNA shatters into pieces and joins with newly-synthesized pieces to fashion two double helices from one. B) parental DNA remains intact but guides formation of new double helices. C) the parental DNA splits and free nucleotides bond to their complements, building two DNA molecules from one. D) an entirely new double helix is built using information in the sequence of amino acids.