Studies on genetic organization in higher organisms: III. Confirmation of the single cistron-allele complementation model of organization of the maroon-like region of Drosophila melanogaster

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Abstract
SUMMARY: A genetic fine-structure experiment on Drosophila melanogaster is described, which makes use of a lethal selective system which permits survival only of recombinants in the ma-l region, including exchanges between site mutants of ma-l. On the basis of prior mapping information, the experiment was designed to select for ma-l double mutant recombinants. Utilizing a pair of complementing ma-l mutants, double mutant meiotic products were recovered whose complementation properties provide independent support for the single-cistron, allele complementation model of organization of the maroon-like region inferred from other experiments described earlier.

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