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Selective Mating as a Cause of Gene Frequency Changes in Laboratory Populations of Drosophila melanogaster

David J. Merrell
Evolution
Vol. 7, No. 4 (Dec., 1953), pp. 287-296
DOI: 10.2307/2405340
Stable URL: http://www.jstor.org/stable/2405340
Page Count: 10
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Selective Mating as a Cause of Gene Frequency Changes in Laboratory Populations of Drosophila melanogaster
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Abstract

On the basis of mating experiments, the changes in the frequency of four sex-linked recessive mutants in populations of Drosophila melanogaster were predicted. The actual changes in gene frequency were then followed in laboratory populations. Each mutant was in competition with its wild type allele. The experimental results agreed closely with the predicted values, indicating that selective mating was a major factor in the decline in frequency of the mutant genes.

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