So their genetic variety was much less than the parent population.

This technique is based on the principle that when each recorded data comes from the same parent population, they are consistent.

As a result the new population may be distinctively different from its parent population.

This will lead to an influx of foreign genes in the parent population, a situation called an introgression.

"Charter schools crop up in areas where you have a parent population that is not satisfied with the public schools," he said.

It is sometimes used, incorrectly, to mean sample variance - the difference between different finite samples of the same parent population.

These groups, by virtue of their small size, cannot carry the full range of alleles to be found in the parent population.

The movement of the population was dictated by rare events that occurred long distances from the parent population.

After isolation, the founding population is less likely to represent the gene pool of the parent population.

We can now write the expression for the child populations of class i in terms of the parent populations .

A (relatively) sudden change in environment will favor some of these mutations, which will expand their domain as the parent population succumbs.

For example, the development of polyploidy in plant species can lead to a new species arising within the geographic range of its parent population.

Currently, a lot of research has been done on how PCIT can be used to keep difficult parenting populations in treatment.

An island population is started by a small number of settlers, so it has only a small fraction of the genes of the parent population.

In a similar way, low-power radio galaxies are a plausible parent population for BL Lac objects.

The short-period comets that they're supposed to turn into don't exhibit the distribution of orbits and inclinations you'd expect from an all-sky parent population."

Portions of a populations that exist along the edges of the parent population's geographic territory have higher likelihood of developing reproductive isolation.

I attributed this to my Upper West Side clientele (many nonconformists) and to the fact that I had a mature parent population.

These rare successes created their own parent populations, allowing for the subpopulation to disperse additional rare, long distance successes perpetuating the movement of the population.

A complete sample is a set of objects from a parent population that includes ALL such objects that satisfy a set of well-defined selection criteria.

As a result of the loss of genetic variation, the new population may be distinctively different, both genetically and phenotypically, from the parent population from which it is derived.

He also notes that an explanation based on differences in IQ explain why mixed-race populations consistently fall between their parent populations, in terms of social problems and achievements.

Diversity decreases steadily the further a population has migrated from the African homeland, since each group that moved onward carried away only some of the diversity of its parent population.

Gy's sampling theory uses a model in which the sample taking is represented by independent Bernoulli trials for every particle in the parent population from which the sample is drawn.

The test compares DNA with that of four parent populations, western European, west African, east Asian and indigenous American, and the company claims it is more than 90 percent accurate.