Examlex
During participant observation, the researcher's primary role becomes that of a member of the group he or she is observing.
DAG
Diacylglycerol, a lipid molecule that acts as a second messenger in signal transduction pathways within cells.
Signal Amplification
The process by which a few signaling molecules can elicit major responses in the cell; the strength of each signaling molecule is magnified.
Signal Transduction
The process by which a cell responds to external signals through a series of molecular changes that convert the signal into a specific cellular response.
Local Regulators
Substances produced in one part of an organism that affect cells in close proximity.
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