Fruit (slang) fruit" (and rarely "old tin of fruit") to the 1920s in Britain possibly deriving from the phrase "fruit of the womb". In the United States, however, both "fruit" and "fruitcake" are seen as negative with fruitcake likely originating from "nutty as a fruitcake" (a crazy person). A costermonger was a street seller of fruit and vegetables. The term, which derived from the words "costard" (a type of apple) and "monger", i.e. "seller", came to be particularly associated with the "barrow boys" of London who would sell their produce from a wheelbarrow or wheeled market stall. Costermongers have existed in London
Wild type all gene loci exist in a variety of allelic forms, which vary in frequency throughout the geographic range of a species, and that a uniform wild type does not exist. In general, however, the most prevalent allele – i.e., the one with the highest gene frequency – is the one deemed as wild type. The concept of wild type is useful in some experimental organisms such as fruit flies "Drosophila melanogaster", in which the standard phenotypes for features such as eye color or wing shape are known to be altered by particular mutations that produce distinctive phenotypes, such as "white