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Genetic drift resulting from a disaster that drastically reduces population size is called?
Wiki User
∙ 12y ago
The bottleneck effect.
Wiki User
∙ 12y ago
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The world's population of cheetahs has very little genetic diversity. The population has dropped drastically in recent years and the bottleneck effect has altered genetic frequencies. What mechanism o?
genetic driftgot you guys2pro was herehml insta@youssof2pro
What condition is necessary for genetic drift to have a significant effect on a population A natural disaster must occur. The population needs to be small. Gene flow must occur. A portion of the p?
The population needs to be small is the necessary condition for genetic drift to have a significant effect on populations.
What is genetic drift-?
Genetic drift is the random change in the frequency of alleles within a population's gene pool. It can cause the genetic composition of a population to change in one direction or another. Combined with natural selection, genetic drift is a principal force in biological evolution.Another Answer:Genetic drift is where random chance events which can effect the gene's abundance in a population, regardless of whether the gene is advantageous or not. For example, a natural disaster kills animals indiscriminately, regardless of their genetic makeup.
What is the meaning of the term evolutionary relationships?
Change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new speciesRead more: evolution
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.
What is genetic disorder resulting defective blood clotting?
hemophilia
True or False When a population is in genetic equilibrium there is no genetic variation among individuals in that population?
True
Why genetic variation is a benefit to a population?
Genetic variation allows a population to adapt to a changing environment.
Which population is a subject to genetic drift?
A large population..
What would most likely decrease the genetic variation in the human population?
A widespread disaster would reduce the variety within the human genetic pool by eliminating all but certain segments of the population. A global plague could potentially have the greatest effect, as plagues (see: black plague, Spanish influenza) often will often decimate all of a local population save for those with genetic immunity--thus standardizing that mutation in future populations. Global catastrophe could also inhibit travel, and would limit human reproduction to their immediate region, limiting the genetic range of potential offspring.
Write an original definition for genetic variation?
The genetic variation of a population is a measure of how much individuals in a population differ genetically.
What is genetic variability?
Genetic variability is the tendency of individual genetic characteristics in a population to vary from one another.
