Examlex
In somatic hypermutation, the mutation of immunoglobulin genes occurs at much higher rates than the mutation rates observed in other genes.
Sardines
Small, oily fish within the herring family of Clupeidae, often canned and eaten by humans.
Marginal Rate
Often referred to as the marginal rate of substitution or the marginal tax rate, indicating the rate at which one can trade off one good for another or the tax rate on the next dollar earned, respectively.
Substitution
Substitution refers to the economic principle where consumers replace more expensive items with less expensive ones or firms replace inputs with cheaper alternatives, in response to changes in price or availability.
Videocassette
A medium for the recording of analog audio and video tapes, now largely obsolete.
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