L�on Poliakov, while assuming the Jews of Western Europe resulted from a " panmixia " in the first millennium, asserted in 1955 that it was widely assumed that Europe's Eastern Jews descended from a mixture of Khazarian and German Jews.
12.
It now is necessary to note that not only is " panmixia " " not " a synonym for " random fertilization ", but also that " random fertilization " is " not " a synonym for " cross fertilization ".
13.
Genetic drift was introduced when discussing the likelihood of panmixia being widely extant as a natural fertilization pattern . [ See section on Allele and Genotype frequencies . ] Here the sampling of gametes from the " potential " gamodeme is discussed in more detail.
14.
Because genotypes are assigned randomly when passed from parents to offspring during meiosis, if we assume that choice of mate is not associated with genotype ( panmixia ), then the population genotype distribution should be unrelated to the confounders that typically plague observational epidemiology studies.
15.
Population genetics definitions of sympatry require that mating be dispersed randomly or that it be equally likely for an individual to mate with either subspecies, in one area as another, or on a new host as a nascent one : this is also known as panmixia.
16.
In attempting to describe the mathematical properties of structured populations, Sewall Wright proposed a " factor of Panmixia " ( P ) to include in the equations describing the gene frequencies in a population, and accounting for a population's tendency towards panmixia, while a " factor of Fixation " ( F ) would account for a population's departure from the Hardy-Weinberg expectation, due to less than panmictic mating.
17.
In attempting to describe the mathematical properties of structured populations, Sewall Wright proposed a " factor of Panmixia " ( P ) to include in the equations describing the gene frequencies in a population, and accounting for a population's tendency towards panmixia, while a " factor of Fixation " ( F ) would account for a population's departure from the Hardy-Weinberg expectation, due to less than panmictic mating.
18.
This failure of panmixia leads to two important changes in overall population structure : ( 1 ) the component gamodemes vary ( through gamete sampling ) in their allele frequencies when compared with each other and with the theoretical panmictic original ( this is known as " dispersion ", and its details can be estimated using expansion of an appropriate binomial equation ); and ( 2 ) the level of homozygosity rises in the entire collection of gamodemes.
