Assertion: genotype's frequency | /r/AtLocation | the wild
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Source sentences:
text: In this field, which came to be known as Population Genetics, estimation of selection coefficients of genotypes inferred from distinct phenotypes was possible, albeit more readily when the populations were subject to artificial selection in the laboratory than when frequencies or changes over time were observed in the wild (which was studied in the new field of ecological genetics).
text: Not surprisingly then, the estimation of the selection coefficients of genotypes (in the sense of pairs of genes) is more readily done when the populations are subject to artificial selection in the laboratory than when frequencies or changes over time are observed in the wild.