bottleneck


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A marked decrease in gene pool diversity due to a low number of genetically distinct individuals in the population, i.e., a population bred from 2 individuals has far fewer variables on the allelic loci—a bottleneck—than a second population bred from hundreds of individuals

bottleneck

a period in the history of a population during which the number of individuals is reduced to a low number, perhaps by disease or extreme environmental conditions. As a result RANDOM GENETIC DRIFT may occur in the population. See also FOUNDER EFFECT.
References in periodicals archive ?
1891 fired a 6.5mm cartridge consisting of a rimless, bottlenecked case measuring 52mm whose round-nosed 162-grain FMJ bullet was propelled to approximately 2300 fps.
If a requirement is both arbitrary and severe, the case for ameliorating that bottleneck is "particularly compelling" (p.
(6) The anti- bottleneck principle helps us see why disparate impact law in fact does not work that way.
Section 2 formulates separately a deterministic and a stochastic bottleneck model with homogeneous PATI.
Therefore, the first course was this program's bottleneck. The program director decided to gather data about the course from the students who dropped out and from those who continued in the program.
For convenience, it is assumed that the bottleneck capacity will drop by a stochastic amount when the queue at the bottleneck reaches a certain level, i.e., the capacity of bottleneck becomes stochastic after the queue length exceeds the certain level.
The slow pace and undue exposure in Bottleneck seemed to be a continuous source of frustration among climbers.
Both, Shaikh Mohammad Bin Zayed Road and Al Ain road are among the busiest roads in Dubai and any bottlenecks adversely impact the overall movement of traffic leading to these highways.
This technology enables engineers to visualize where and how the equipment fits into the entire operation, identify what works and what doesn't, and detect bottlenecks.
In addition, with this bottleneck analysis and optimal configuration generation technology, it has become possible to quickly and optimally configure a virtual network without an expert, which is also expected to reduce operating costs.
Experts have found seven major bottlenecks in Central and New Delhi areas, which include the ever- congested ITO intersection and Tilak Marg Wpoint, opposite Pragati Maidan metro station.