: 11 The later definition by Cavalli-Sforza & Bodmer (1971) is currently used: Genetic polymorphism is the occurrence in the same population of two or more alleles at one locus, each with appreciable frequency, where the minimum frequency is typically taken as 1%.
The financial world splits up its calendar into four quarters, each three months long. If January to March is the first quarter, April to June is the second quarter, and so on, though a company's first quarter does not have to begin in January.
Despite the name, quarters are generally 10-week trimesters that run from mid-or late September till mid-June. Thereâs a two or three day break at Thanksgiving, and a two week break for the winter holidays, with a new quarter starting immediately after New Yearâs.