population$62480$ - ορισμός. Τι είναι το population$62480$
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Τι (ποιος) είναι population$62480$ - ορισμός

Idealized population; Ideal population; Fisher-Wright population

Statistical population         
COMPLETE SET OF ITEMS THAT SHARE AT LEAST ONE PROPERTY IN COMMON THAT IS THE SUBJECT OF A STATISTICAL ANALYSIS
Statistical Population; Population (statistics); Population mean; Subpopulation; Statistical Populations; Sub-population
In statistics, a population is a set of similar items or events which is of interest for some question or experiment. A statistical population can be a group of existing objects (e.
Population genetics         
  • ''Drosophila melanogaster''
  • Gene flow is the transfer of [[allele]]s from one [[population]] to another population through immigration of individuals. In this example, one of the birds from population A [[immigrate]]s to population B, which has fewer of the dominant alleles, and through mating incorporates its alleles into the other population.
  • The [[Great Wall of China]] is an obstacle to gene flow of some terrestrial species.<ref name="Su Qu 2003"/>
  • product]] of the contributions from each of its loci.
  • Current tree of life showing vertical and horizontal gene transfers.
SUBFIELD OF GENETICS THAT DEALS WITH GENETIC DIFFERENCES OF POPULATIONS, PART OF EVOLUTIONARY BIOLOGY
Population geneticists; Population geneticist; Genetics, population; Genetic migration; Population genetic; Population Genetics; Evolutionary genetics; Animal population study; History of population genetics; Population biologist; Genetic populations; DNA genealogy
Population genetics is a subfield of genetics that deals with genetic differences within and between populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure.
Population dynamics         
  • logistic]] instead of geometric. Nevertheless, doubling times are applicable to both types of populations.''</small>
  • jstor=4267}}</ref>
THE BRANCH OF LIFE SCIENCES STUDYING CHANGES IN THE SIZE AND AGE COMPOSITION OF POPULATIONS
Populations dynamics; Natural check; History of population dynamics; Mathematical models of population growth; Human population dynamics; Population oscillation
Population dynamics is the type of mathematics used to model and study the size and age composition of populations as dynamical systems.

Βικιπαίδεια

Idealised population

In population genetics an idealised population is one that can be described using a number of simplifying assumptions. Models of idealised populations are either used to make a general point, or they are fit to data on real populations for which the assumptions may not hold true. For example, coalescent theory is used to fit data to models of idealised populations. The most common idealized population in population genetics is described in the Wright-Fisher model after Sewall Wright and Ronald Fisher (1922, 1930) and (1931). Wright-Fisher populations have constant size, and their members can mate and reproduce with any other member. Another example is a Moran model, which has overlapping generations, rather than the non-overlapping generations of the Fisher-Wright model. The complexities of real populations can cause their behavior to match an idealised population with an effective population size that is very different from the census population size of the real population. For sexual diploids, idealized populations will have genotype frequencies related to the allele frequencies according to Hardy-Weinberg equilibrium.