: 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.
You can earn up to 4 quarters per calendar year, regardless of when the earnings were actually earned â once you make $4,480 in a year, you have 4 quarters for that year, whether you earned that money in January or December. Current requirements are as follows: