Biology, 04.08.2019 23:30 tmmackie9261

How are the effects of genetic drift similar to the effects of having a small sample size in a scientific experiment?

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Genetic drift refers to the change in the frequency of an existing gene variant in a population due to random sampling of organisms. In this case, a small sample size in an experiment can skew the results, because ordinary data will not be averaged out.This effect is the same with genetic drift, such that genetic drift can have a small populations by chance, certain alleles may increase or decrease in frequency because of the small population size.

Answer from: ecolifesfsu1263

The effects of genetic drift are similar to a small sample size in that they can exhibit a very large variance compared to a larger sample or a larger gene pool. With a small population, genetic drift can be more extreme than it would be in a larger population.

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Size and shape of continents

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c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust. the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles. three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

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