Arrange the events of a second messenger system in the correct order
1) Protein kinase is activated.
2) G protein is activated.
3) The neurotransmitter binds to its receptor.
4) The protein closes the potassium channel.
5) Cyclic AMP is produced.
6) Phosphorylation takes place.
a. 1 ? 2 ? 5 ? 6 ? 4 ? 3
b. 3 ? 5 ? 6 ? 1 ? 2 ? 4
c. 5 ? 2 ? 6 ? 1 ? 3 ? 4
d. 3 ? 2 ? 5 ? 1 ? 6 ? 4
e. 5 ? 2 ? 6 ? 1 ? 4 ? 3
d
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During a growth curve of Aliivibrio fischeri, when would you expect to see the strongest bioluminescence?
A) lag phase B) early to middle log phase C) late log to early stationary phase D) middle to late stationary phase
The inner surface of epithelial tissue rests on a
a. layer of adipose tissue. b. basement membrane. c. layer of connective tissue. d. mix of cells and proteins. e. mix of cells and polysaccharides.
Which of the following is NOT a trait that is the result of, or is affected by, the interaction of more than one gene?
A. human skin color B. sickle-cell anemia C. cleft palate D. height
Most genes come in alternative forms called
a) dominants b) recessives c) alleles d) chromosomes e) gametes