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Q: Why is low genetic variability so bad for a population?
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What would decrease genetic variation in a population?

When there is low genetic variation in a population the species produced are unlikely to withstand diseases.


Which procedure can not be used to increase genetic variation?

If a population dwindles, there is low genetic variation and a species may risk extinction.


Why is low genetic variation a problem?

Low Genetic variationis the raw material of evolution. Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction.


What is a genetic bottleneck and are humans affected by one?

A population bottleneck (or genetic bottleneck) is an evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing. This reduces the genetic diversity of the population, and even if the population bounces back in size, it can often show evidence of the past bottleneck by lacking significant variation for its size. A good example is that of the cheetah, whose current population shows almost negligible variation. Humans are not currently experiencing any genetic bottlenecking because the population is increasing. However, there is evidence suggesting that the human population underwent one or more bottlenecks in the past, since its overall genetic diversity is relatively low for its size.


What does low genetic diversity do?

Generally, a low rate of evolution.


What is one reason that cheetash are endangered?

Low genetic diversity is the most important factor for Cheetahs to adapt in the changing environment. Their population is dwindling, hence these are endangered.


What causes many endangered species that are now found only in zoos to have very little genetic variations?

Founder effect refers to the loss of genetic variation when a new colony is established by a very small number of individuals from a larger population. As a result of the loss of genetic variation, the new population may be distinctively different.Bottleneck effect is an evolutionary event in which a significant percentage of a population or species is killed or otherwise prevented from reproducing, and the population is reduced by 50% or more, often by several orders of magnitude.Population bottlenecks increase genetic drift, as the rate of drift is inversely proportional to the population size.They also increase inbreeding due to the reduced pool of possible mates.


What type of gene flow allows reduction of variation?

Gene flow that involves the movement of individuals from a high-variation population into a low-variation population can result in a reduction of genetic variation. This can happen if the incoming individuals do not introduce new alleles or if genetic drift and selection reduce the frequency of existing alleles.


What is the population of Low Hill?

Low Hill's population is 2,888.


What is William Low's population?

The population of William Low is 8,981.


Why is the government of Scandinavia expensive to run?

low population


When is a genetic drift a major factor of evolution?

When there is low gene flow.