Changes in the gene pool can occur due to various mechanisms. From 1892 to 1954, millions of individuals emigrated (moved out) from countries across the Atlantic Ocean to the United States. Many of these individuals entered through Ellis Island, a federal immigration station in New York. Which mechanism affected the gene pool of the immigrants that entered the United States through Ellis Island? genetic drift gene flow gene mutation natural selection
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gene flow. as gene flow is movemennt of particular set of genes from one place to another w.r.t. time
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The correct answer is gene flow.
According to population genetics, gene flow is the process of transfer of varied genes from one population to another bringing about genetic diversity amongst different populations.
This takes place when individuals carrying a particular set of genes migrate from one place to another leading to an alteration in the genetic composition of that place.
This leads to reduction in genetic differences between two different populations and brings about homogeneity and restricts speciation.
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