No Crossing over in the Male of Drosophila of Genes in the Second and Third Pairs of Chromosomes

Abstract

In a brief note in Science for November 22, 1912, it was pointed out that there was no "crossing over" in the male between the factors for black body color and vestigial wings, while between the same factors in the female there was 22 per cent. of crossing over. The data then published have been extended and revised, and the results can now be given in detail. For purposes of easy comparison I shall present the data in the same order as those given in the preliminary report.

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