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This investigation has been aided by a grant to Dr. C. W. Metz from the National Research Council, Committee for Research in Problem of Sex.
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Du Bois, A.M. Chromosome behavior during cleavage in the eggs of Sciara coprophila (Diptera) in the relation to the problem of sex determination. Z. Zellforsch 19, 595–614 (1933). https://doi.org/10.1007/BF00393361
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DOI: https://doi.org/10.1007/BF00393361