transduction /trans·duc·tion/ (-duk´shun)
transduction
1. a method of genetic recombination in bacteria, in which DNA is transferred between bacteria via bacteriophages.
2. the transforming of one form of energy into another, as by the sensory mechanisms of the body.
sensory transduction the process by which a sensory receptor converts a stimulus from the environment to an action potential for transmission to the brain.
trans·duc·tion (tr ns-d k sh n, trnz-)n. Transfer of genetic material or characteristics from one bacterial cell to another by a bacteriophage or plasmid. |
transduction
[-duk′shən]
a method of genetic recombination by which DNA is transferred from one cell to another by a viral vector. Various bacteriophages transfer DNA from one species of bacteria to another.
transduction
the transfer of a genetic fragment from one bacterium to another by bacteriophage.
transduction
Generally, the conversion of one form of energy into another. Example: the transformation of light energy into receptor potentials in the photoreceptors of the retina (also called phototransduction). The absorption of light by the pigments of the photoreceptors triggers a cascade of biochemical events that leads to a change in ionic fluxes across the plasma membrane and to a change in resting potential from around −40 mV in the dark, to around −70 mV in light, that is a hyperpolarization of the cells. See depolarization; hyperpolarization; receptor potential; visual pigment.
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